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Finding the Fourth Proportional to 61,937.80, 85,472.76 and 33,642.88

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Solution

The fourth proportional to 61,937.80, 85,472.76 and 33,642.88 is: 46,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,937.80 : 85,472.76 = 33,642.88 : x
  2. Step 2: Convert to fraction form
    61,937.80/85,472.76 = 33,642.88/x
  3. Step 3: Cross multiply
    61,937.80x = 85,472.76 × 33,642.88
  4. Step 4: Simplify right side
    61,937.80x = 2,875,549,807.95
  5. Step 5: Solve for x
    x = 2,875,549,807.95/61,937.80
  6. Step 6: Final answer
    x = 46,426.41

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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.