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Finding the Fourth Proportional to 53,160.69, 73,362.69 and 29,287.20

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Solution

The fourth proportional to 53,160.69, 73,362.69 and 29,287.20 is: 40,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,160.69 : 73,362.69 = 29,287.20 : x
  2. Step 2: Convert to fraction form
    53,160.69/73,362.69 = 29,287.20/x
  3. Step 3: Cross multiply
    53,160.69x = 73,362.69 × 29,287.20
  4. Step 4: Simplify right side
    53,160.69x = 2,148,587,774.57
  5. Step 5: Solve for x
    x = 2,148,587,774.57/53,160.69
  6. Step 6: Final answer
    x = 40,416.85

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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.