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Finding the Fourth Proportional to 28,596.08, 42,894.14 and 11,947.03

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Solution

The fourth proportional to 28,596.08, 42,894.14 and 11,947.03 is: 17,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,596.08 : 42,894.14 = 11,947.03 : x
  2. Step 2: Convert to fraction form
    28,596.08/42,894.14 = 11,947.03/x
  3. Step 3: Cross multiply
    28,596.08x = 42,894.14 × 11,947.03
  4. Step 4: Simplify right side
    28,596.08x = 512,457,577.40
  5. Step 5: Solve for x
    x = 512,457,577.40/28,596.08
  6. Step 6: Final answer
    x = 17,920.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.