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Finding the Fourth Proportional to 47,013.90, 70,475.90 and 17,423.80

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Solution

The fourth proportional to 47,013.90, 70,475.90 and 17,423.80 is: 26,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,013.90 : 70,475.90 = 17,423.80 : x
  2. Step 2: Convert to fraction form
    47,013.90/70,475.90 = 17,423.80/x
  3. Step 3: Cross multiply
    47,013.90x = 70,475.90 × 17,423.80
  4. Step 4: Simplify right side
    47,013.90x = 1,227,957,986.42
  5. Step 5: Solve for x
    x = 1,227,957,986.42/47,013.90
  6. Step 6: Final answer
    x = 26,119.04

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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.