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Finding the Fourth Proportional to 29,971.60, 44,957.40 and 10,247.20

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Solution

The fourth proportional to 29,971.60, 44,957.40 and 10,247.20 is: 15,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,971.60 : 44,957.40 = 10,247.20 : x
  2. Step 2: Convert to fraction form
    29,971.60/44,957.40 = 10,247.20/x
  3. Step 3: Cross multiply
    29,971.60x = 44,957.40 × 10,247.20
  4. Step 4: Simplify right side
    29,971.60x = 460,687,469.28
  5. Step 5: Solve for x
    x = 460,687,469.28/29,971.60
  6. Step 6: Final answer
    x = 15,370.80

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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.