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Finding the Fourth Proportional to 65,109.40, 97,620.30 and 25,646.20

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Solution

The fourth proportional to 65,109.40, 97,620.30 and 25,646.20 is: 38,452.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,109.40 : 97,620.30 = 25,646.20 : x
  2. Step 2: Convert to fraction form
    65,109.40/97,620.30 = 25,646.20/x
  3. Step 3: Cross multiply
    65,109.40x = 97,620.30 × 25,646.20
  4. Step 4: Simplify right side
    65,109.40x = 2,503,589,737.86
  5. Step 5: Solve for x
    x = 2,503,589,737.86/65,109.40
  6. Step 6: Final answer
    x = 38,452.05

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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.