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Finding the Fourth Proportional to 55,618.57, 83,427.16 and 13,499

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Solution

The fourth proportional to 55,618.57, 83,427.16 and 13,499 is: 20,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,618.57 : 83,427.16 = 13,499 : x
  2. Step 2: Convert to fraction form
    55,618.57/83,427.16 = 13,499/x
  3. Step 3: Cross multiply
    55,618.57x = 83,427.16 × 13,499
  4. Step 4: Simplify right side
    55,618.57x = 1,126,183,232.84
  5. Step 5: Solve for x
    x = 1,126,183,232.84/55,618.57
  6. Step 6: Final answer
    x = 20,248.33

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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.