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Finding the Fourth Proportional to 43,471.52, 65,148.12 and 18,480.16

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Solution

The fourth proportional to 43,471.52, 65,148.12 and 18,480.16 is: 27,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,471.52 : 65,148.12 = 18,480.16 : x
  2. Step 2: Convert to fraction form
    43,471.52/65,148.12 = 18,480.16/x
  3. Step 3: Cross multiply
    43,471.52x = 65,148.12 × 18,480.16
  4. Step 4: Simplify right side
    43,471.52x = 1,203,947,681.30
  5. Step 5: Solve for x
    x = 1,203,947,681.30/43,471.52
  6. Step 6: Final answer
    x = 27,695.09

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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.