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Finding the Fourth Proportional to 61,887.38, 85,426.72 and 36,736.88

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Solution

The fourth proportional to 61,887.38, 85,426.72 and 36,736.88 is: 50,710.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,887.38 : 85,426.72 = 36,736.88 : x
  2. Step 2: Convert to fraction form
    61,887.38/85,426.72 = 36,736.88/x
  3. Step 3: Cross multiply
    61,887.38x = 85,426.72 × 36,736.88
  4. Step 4: Simplify right side
    61,887.38x = 3,138,310,642.46
  5. Step 5: Solve for x
    x = 3,138,310,642.46/61,887.38
  6. Step 6: Final answer
    x = 50,710.03

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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.