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Finding the Fourth Proportional to 61,246.80, 84,513.78 and 34,385.58

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Solution

The fourth proportional to 61,246.80, 84,513.78 and 34,385.58 is: 47,448.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,246.80 : 84,513.78 = 34,385.58 : x
  2. Step 2: Convert to fraction form
    61,246.80/84,513.78 = 34,385.58/x
  3. Step 3: Cross multiply
    61,246.80x = 84,513.78 × 34,385.58
  4. Step 4: Simplify right side
    61,246.80x = 2,906,055,343.29
  5. Step 5: Solve for x
    x = 2,906,055,343.29/61,246.80
  6. Step 6: Final answer
    x = 47,448.28

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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.