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Finding the Fourth Proportional to 13,357.19, 20,038.98 and 4,591.88

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Solution

The fourth proportional to 13,357.19, 20,038.98 and 4,591.88 is: 6,888.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.19 : 20,038.98 = 4,591.88 : x
  2. Step 2: Convert to fraction form
    13,357.19/20,038.98 = 4,591.88/x
  3. Step 3: Cross multiply
    13,357.19x = 20,038.98 × 4,591.88
  4. Step 4: Simplify right side
    13,357.19x = 92,016,591.48
  5. Step 5: Solve for x
    x = 92,016,591.48/13,357.19
  6. Step 6: Final answer
    x = 6,888.92

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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.