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Finding the Fourth Proportional to 61,685.97, 85,126.55 and 33,391.77

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Solution

The fourth proportional to 61,685.97, 85,126.55 and 33,391.77 is: 46,080.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,685.97 : 85,126.55 = 33,391.77 : x
  2. Step 2: Convert to fraction form
    61,685.97/85,126.55 = 33,391.77/x
  3. Step 3: Cross multiply
    61,685.97x = 85,126.55 × 33,391.77
  4. Step 4: Simplify right side
    61,685.97x = 2,842,526,011.53
  5. Step 5: Solve for x
    x = 2,842,526,011.53/61,685.97
  6. Step 6: Final answer
    x = 46,080.59

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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.