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Finding the Fourth Proportional to 47,115.80, 70,671.81 and 15,951.05

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Solution

The fourth proportional to 47,115.80, 70,671.81 and 15,951.05 is: 23,925.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,115.80 : 70,671.81 = 15,951.05 : x
  2. Step 2: Convert to fraction form
    47,115.80/70,671.81 = 15,951.05/x
  3. Step 3: Cross multiply
    47,115.80x = 70,671.81 × 15,951.05
  4. Step 4: Simplify right side
    47,115.80x = 1,127,289,574.90
  5. Step 5: Solve for x
    x = 1,127,289,574.90/47,115.80
  6. Step 6: Final answer
    x = 23,925.94

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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.