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Finding the Fourth Proportional to 71,084.70, 106,561.13 and 26,740.84

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Solution

The fourth proportional to 71,084.70, 106,561.13 and 26,740.84 is: 40,086.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,084.70 : 106,561.13 = 26,740.84 : x
  2. Step 2: Convert to fraction form
    71,084.70/106,561.13 = 26,740.84/x
  3. Step 3: Cross multiply
    71,084.70x = 106,561.13 × 26,740.84
  4. Step 4: Simplify right side
    71,084.70x = 2,849,534,127.55
  5. Step 5: Solve for x
    x = 2,849,534,127.55/71,084.70
  6. Step 6: Final answer
    x = 40,086.46

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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.