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Finding the Fourth Proportional to 52,491.71, 72,507.71 and 38,907.29

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Solution

The fourth proportional to 52,491.71, 72,507.71 and 38,907.29 is: 53,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,491.71 : 72,507.71 = 38,907.29 : x
  2. Step 2: Convert to fraction form
    52,491.71/72,507.71 = 38,907.29/x
  3. Step 3: Cross multiply
    52,491.71x = 72,507.71 × 38,907.29
  4. Step 4: Simplify right side
    52,491.71x = 2,821,078,778.74
  5. Step 5: Solve for x
    x = 2,821,078,778.74/52,491.71
  6. Step 6: Final answer
    x = 53,743.32

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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.