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Finding the Fourth Proportional to 47,266.76, 70,900.18 and 12,206.42

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Solution

The fourth proportional to 47,266.76, 70,900.18 and 12,206.42 is: 18,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,266.76 : 70,900.18 = 12,206.42 : x
  2. Step 2: Convert to fraction form
    47,266.76/70,900.18 = 12,206.42/x
  3. Step 3: Cross multiply
    47,266.76x = 70,900.18 × 12,206.42
  4. Step 4: Simplify right side
    47,266.76x = 865,437,375.16
  5. Step 5: Solve for x
    x = 865,437,375.16/47,266.76
  6. Step 6: Final answer
    x = 18,309.64

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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.