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Finding the Fourth Proportional to 47,122.38, 70,681.75 and 15,957.63

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Solution

The fourth proportional to 47,122.38, 70,681.75 and 15,957.63 is: 23,935.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,122.38 : 70,681.75 = 15,957.63 : x
  2. Step 2: Convert to fraction form
    47,122.38/70,681.75 = 15,957.63/x
  3. Step 3: Cross multiply
    47,122.38x = 70,681.75 × 15,957.63
  4. Step 4: Simplify right side
    47,122.38x = 1,127,913,174.36
  5. Step 5: Solve for x
    x = 1,127,913,174.36/47,122.38
  6. Step 6: Final answer
    x = 23,935.83

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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.