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Finding the Fourth Proportional to 71,403.48, 98,542.62 and 39,582.62

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Solution

The fourth proportional to 71,403.48, 98,542.62 and 39,582.62 is: 54,627.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,403.48 : 98,542.62 = 39,582.62 : x
  2. Step 2: Convert to fraction form
    71,403.48/98,542.62 = 39,582.62/x
  3. Step 3: Cross multiply
    71,403.48x = 98,542.62 × 39,582.62
  4. Step 4: Simplify right side
    71,403.48x = 3,900,575,081.26
  5. Step 5: Solve for x
    x = 3,900,575,081.26/71,403.48
  6. Step 6: Final answer
    x = 54,627.24

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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.