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Finding the Fourth Proportional to 31,624.80, 47,439.90 and 10,848.30

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Solution

The fourth proportional to 31,624.80, 47,439.90 and 10,848.30 is: 16,273.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,624.80 : 47,439.90 = 10,848.30 : x
  2. Step 2: Convert to fraction form
    31,624.80/47,439.90 = 10,848.30/x
  3. Step 3: Cross multiply
    31,624.80x = 47,439.90 × 10,848.30
  4. Step 4: Simplify right side
    31,624.80x = 514,642,267.17
  5. Step 5: Solve for x
    x = 514,642,267.17/31,624.80
  6. Step 6: Final answer
    x = 16,273.38

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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.