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Finding the Fourth Proportional to 86,556.60, 129,834.90 and 23,376.60

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Solution

The fourth proportional to 86,556.60, 129,834.90 and 23,376.60 is: 35,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,556.60 : 129,834.90 = 23,376.60 : x
  2. Step 2: Convert to fraction form
    86,556.60/129,834.90 = 23,376.60/x
  3. Step 3: Cross multiply
    86,556.60x = 129,834.90 × 23,376.60
  4. Step 4: Simplify right side
    86,556.60x = 3,035,098,523.34
  5. Step 5: Solve for x
    x = 3,035,098,523.34/86,556.60
  6. Step 6: Final answer
    x = 35,064.90

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Similar ratio
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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.