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Finding the Fourth Proportional to 66,402.20, 99,602.88 and 26,958.92

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Solution

The fourth proportional to 66,402.20, 99,602.88 and 26,958.92 is: 40,438.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,402.20 : 99,602.88 = 26,958.92 : x
  2. Step 2: Convert to fraction form
    66,402.20/99,602.88 = 26,958.92/x
  3. Step 3: Cross multiply
    66,402.20x = 99,602.88 × 26,958.92
  4. Step 4: Simplify right side
    66,402.20x = 2,685,186,073.69
  5. Step 5: Solve for x
    x = 2,685,186,073.69/66,402.20
  6. Step 6: Final answer
    x = 40,438.21

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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.