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Finding the Fourth Proportional to 47,201.77, 65,138.88 and 25,981.12

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Solution

The fourth proportional to 47,201.77, 65,138.88 and 25,981.12 is: 35,854.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,201.77 : 65,138.88 = 25,981.12 : x
  2. Step 2: Convert to fraction form
    47,201.77/65,138.88 = 25,981.12/x
  3. Step 3: Cross multiply
    47,201.77x = 65,138.88 × 25,981.12
  4. Step 4: Simplify right side
    47,201.77x = 1,692,381,057.95
  5. Step 5: Solve for x
    x = 1,692,381,057.95/47,201.77
  6. Step 6: Final answer
    x = 35,854.19

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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.