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Finding the Fourth Proportional to 53,002.71, 73,142.49 and 28,802.97

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Solution

The fourth proportional to 53,002.71, 73,142.49 and 28,802.97 is: 39,747.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,002.71 : 73,142.49 = 28,802.97 : x
  2. Step 2: Convert to fraction form
    53,002.71/73,142.49 = 28,802.97/x
  3. Step 3: Cross multiply
    53,002.71x = 73,142.49 × 28,802.97
  4. Step 4: Simplify right side
    53,002.71x = 2,106,720,945.20
  5. Step 5: Solve for x
    x = 2,106,720,945.20/53,002.71
  6. Step 6: Final answer
    x = 39,747.42

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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.