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Finding the Fourth Proportional to 47,437.60, 65,465.04 and 25,928.20

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Solution

The fourth proportional to 47,437.60, 65,465.04 and 25,928.20 is: 35,781.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,437.60 : 65,465.04 = 25,928.20 : x
  2. Step 2: Convert to fraction form
    47,437.60/65,465.04 = 25,928.20/x
  3. Step 3: Cross multiply
    47,437.60x = 65,465.04 × 25,928.20
  4. Step 4: Simplify right side
    47,437.60x = 1,697,390,650.13
  5. Step 5: Solve for x
    x = 1,697,390,650.13/47,437.60
  6. Step 6: Final answer
    x = 35,781.55

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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.