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Finding the Fourth Proportional to 38,117.84, 52,600.84 and 20,889.32

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Solution

The fourth proportional to 38,117.84, 52,600.84 and 20,889.32 is: 28,826.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,117.84 : 52,600.84 = 20,889.32 : x
  2. Step 2: Convert to fraction form
    38,117.84/52,600.84 = 20,889.32/x
  3. Step 3: Cross multiply
    38,117.84x = 52,600.84 × 20,889.32
  4. Step 4: Simplify right side
    38,117.84x = 1,098,795,779.03
  5. Step 5: Solve for x
    x = 1,098,795,779.03/38,117.84
  6. Step 6: Final answer
    x = 28,826.29

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.