Home / 47,400.87-71,101.50-11,862.10

Finding the Fourth Proportional to 47,400.87, 71,101.50 and 11,862.10

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Solution

The fourth proportional to 47,400.87, 71,101.50 and 11,862.10 is: 17,793.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,400.87 : 71,101.50 = 11,862.10 : x
  2. Step 2: Convert to fraction form
    47,400.87/71,101.50 = 11,862.10/x
  3. Step 3: Cross multiply
    47,400.87x = 71,101.50 × 11,862.10
  4. Step 4: Simplify right side
    47,400.87x = 843,412,747.64
  5. Step 5: Solve for x
    x = 843,412,747.64/47,400.87
  6. Step 6: Final answer
    x = 17,793.19

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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.