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Finding the Fourth Proportional to 42,416.52, 63,624.51 and 11,251.50

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Solution

The fourth proportional to 42,416.52, 63,624.51 and 11,251.50 is: 16,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,416.52 : 63,624.51 = 11,251.50 : x
  2. Step 2: Convert to fraction form
    42,416.52/63,624.51 = 11,251.50/x
  3. Step 3: Cross multiply
    42,416.52x = 63,624.51 × 11,251.50
  4. Step 4: Simplify right side
    42,416.52x = 715,871,174.27
  5. Step 5: Solve for x
    x = 715,871,174.27/42,416.52
  6. Step 6: Final answer
    x = 16,877.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.