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Finding the Fourth Proportional to 47,155.36, 65,074.50 and 25,934.20

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Solution

The fourth proportional to 47,155.36, 65,074.50 and 25,934.20 is: 35,789.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,155.36 : 65,074.50 = 25,934.20 : x
  2. Step 2: Convert to fraction form
    47,155.36/65,074.50 = 25,934.20/x
  3. Step 3: Cross multiply
    47,155.36x = 65,074.50 × 25,934.20
  4. Step 4: Simplify right side
    47,155.36x = 1,687,655,097.90
  5. Step 5: Solve for x
    x = 1,687,655,097.90/47,155.36
  6. Step 6: Final answer
    x = 35,789.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.