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Finding the Fourth Proportional to 65,171.80, 97,790.10 and 25,730.20

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Solution

The fourth proportional to 65,171.80, 97,790.10 and 25,730.20 is: 38,608.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,171.80 : 97,790.10 = 25,730.20 : x
  2. Step 2: Convert to fraction form
    65,171.80/97,790.10 = 25,730.20/x
  3. Step 3: Cross multiply
    65,171.80x = 97,790.10 × 25,730.20
  4. Step 4: Simplify right side
    65,171.80x = 2,516,158,831.02
  5. Step 5: Solve for x
    x = 2,516,158,831.02/65,171.80
  6. Step 6: Final answer
    x = 38,608.09

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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.