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Finding the Fourth Proportional to 71,580.79, 107,290.18 and 36,446.23

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Solution

The fourth proportional to 71,580.79, 107,290.18 and 36,446.23 is: 54,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,580.79 : 107,290.18 = 36,446.23 : x
  2. Step 2: Convert to fraction form
    71,580.79/107,290.18 = 36,446.23/x
  3. Step 3: Cross multiply
    71,580.79x = 107,290.18 × 36,446.23
  4. Step 4: Simplify right side
    71,580.79x = 3,910,322,577.02
  5. Step 5: Solve for x
    x = 3,910,322,577.02/71,580.79
  6. Step 6: Final answer
    x = 54,628.10

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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.