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Finding the Fourth Proportional to 10,053.60, 15,079.11 and 2,658.64

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Solution

The fourth proportional to 10,053.60, 15,079.11 and 2,658.64 is: 3,987.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,053.60 : 15,079.11 = 2,658.64 : x
  2. Step 2: Convert to fraction form
    10,053.60/15,079.11 = 2,658.64/x
  3. Step 3: Cross multiply
    10,053.60x = 15,079.11 × 2,658.64
  4. Step 4: Simplify right side
    10,053.60x = 40,089,920.57
  5. Step 5: Solve for x
    x = 40,089,920.57/10,053.60
  6. Step 6: Final answer
    x = 3,987.62

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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.