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Finding the Fourth Proportional to 71,120.60, 106,645.08 and 23,718.88

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Solution

The fourth proportional to 71,120.60, 106,645.08 and 23,718.88 is: 35,566.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,120.60 : 106,645.08 = 23,718.88 : x
  2. Step 2: Convert to fraction form
    71,120.60/106,645.08 = 23,718.88/x
  3. Step 3: Cross multiply
    71,120.60x = 106,645.08 × 23,718.88
  4. Step 4: Simplify right side
    71,120.60x = 2,529,501,855.11
  5. Step 5: Solve for x
    x = 2,529,501,855.11/71,120.60
  6. Step 6: Final answer
    x = 35,566.37

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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.