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Finding the Fourth Proportional to 38,089.71, 52,563.63 and 21,322.71

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Solution

The fourth proportional to 38,089.71, 52,563.63 and 21,322.71 is: 29,425.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,089.71 : 52,563.63 = 21,322.71 : x
  2. Step 2: Convert to fraction form
    38,089.71/52,563.63 = 21,322.71/x
  3. Step 3: Cross multiply
    38,089.71x = 52,563.63 × 21,322.71
  4. Step 4: Simplify right side
    38,089.71x = 1,120,799,039.04
  5. Step 5: Solve for x
    x = 1,120,799,039.04/38,089.71
  6. Step 6: Final answer
    x = 29,425.24

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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.