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Finding the Fourth Proportional to 71,449.16, 107,087.78 and 26,434.63

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Solution

The fourth proportional to 71,449.16, 107,087.78 and 26,434.63 is: 39,620.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,449.16 : 107,087.78 = 26,434.63 : x
  2. Step 2: Convert to fraction form
    71,449.16/107,087.78 = 26,434.63/x
  3. Step 3: Cross multiply
    71,449.16x = 107,087.78 × 26,434.63
  4. Step 4: Simplify right side
    71,449.16x = 2,830,825,841.82
  5. Step 5: Solve for x
    x = 2,830,825,841.82/71,449.16
  6. Step 6: Final answer
    x = 39,620.14

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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.