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Finding the Fourth Proportional to 61,386.88, 84,714.24 and 36,248.80

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Solution

The fourth proportional to 61,386.88, 84,714.24 and 36,248.80 is: 50,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,386.88 : 84,714.24 = 36,248.80 : x
  2. Step 2: Convert to fraction form
    61,386.88/84,714.24 = 36,248.80/x
  3. Step 3: Cross multiply
    61,386.88x = 84,714.24 × 36,248.80
  4. Step 4: Simplify right side
    61,386.88x = 3,070,789,542.91
  5. Step 5: Solve for x
    x = 3,070,789,542.91/61,386.88
  6. Step 6: Final answer
    x = 50,023.55

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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.