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Finding the Fourth Proportional to 47,951.40, 71,920.80 and 14,674.80

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Solution

The fourth proportional to 47,951.40, 71,920.80 and 14,674.80 is: 22,010.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,951.40 : 71,920.80 = 14,674.80 : x
  2. Step 2: Convert to fraction form
    47,951.40/71,920.80 = 14,674.80/x
  3. Step 3: Cross multiply
    47,951.40x = 71,920.80 × 14,674.80
  4. Step 4: Simplify right side
    47,951.40x = 1,055,423,355.84
  5. Step 5: Solve for x
    x = 1,055,423,355.84/47,951.40
  6. Step 6: Final answer
    x = 22,010.27

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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.