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Finding the Fourth Proportional to 35,921.44, 53,882.44 and 13,437.20

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Solution

The fourth proportional to 35,921.44, 53,882.44 and 13,437.20 is: 20,155.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,921.44 : 53,882.44 = 13,437.20 : x
  2. Step 2: Convert to fraction form
    35,921.44/53,882.44 = 13,437.20/x
  3. Step 3: Cross multiply
    35,921.44x = 53,882.44 × 13,437.20
  4. Step 4: Simplify right side
    35,921.44x = 724,029,122.77
  5. Step 5: Solve for x
    x = 724,029,122.77/35,921.44
  6. Step 6: Final answer
    x = 20,155.90

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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.