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Finding the Fourth Proportional to 61,187.76, 84,428.88 and 36,042.24

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Solution

The fourth proportional to 61,187.76, 84,428.88 and 36,042.24 is: 49,732.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,187.76 : 84,428.88 = 36,042.24 : x
  2. Step 2: Convert to fraction form
    61,187.76/84,428.88 = 36,042.24/x
  3. Step 3: Cross multiply
    61,187.76x = 84,428.88 × 36,042.24
  4. Step 4: Simplify right side
    61,187.76x = 3,043,005,955.89
  5. Step 5: Solve for x
    x = 3,043,005,955.89/61,187.76
  6. Step 6: Final answer
    x = 49,732.27

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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.