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Finding the Fourth Proportional to 63,410.40, 87,549.12 and 56,674.44

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Solution

The fourth proportional to 63,410.40, 87,549.12 and 56,674.44 is: 78,248.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,410.40 : 87,549.12 = 56,674.44 : x
  2. Step 2: Convert to fraction form
    63,410.40/87,549.12 = 56,674.44/x
  3. Step 3: Cross multiply
    63,410.40x = 87,549.12 × 56,674.44
  4. Step 4: Simplify right side
    63,410.40x = 4,961,797,348.49
  5. Step 5: Solve for x
    x = 4,961,797,348.49/63,410.40
  6. Step 6: Final answer
    x = 78,248.95

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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.