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Finding the Fourth Proportional to 47,207.40, 70,811.10 and 26,212.20

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Solution

The fourth proportional to 47,207.40, 70,811.10 and 26,212.20 is: 39,318.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,207.40 : 70,811.10 = 26,212.20 : x
  2. Step 2: Convert to fraction form
    47,207.40/70,811.10 = 26,212.20/x
  3. Step 3: Cross multiply
    47,207.40x = 70,811.10 × 26,212.20
  4. Step 4: Simplify right side
    47,207.40x = 1,856,114,715.42
  5. Step 5: Solve for x
    x = 1,856,114,715.42/47,207.40
  6. Step 6: Final answer
    x = 39,318.30

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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.