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Finding the Fourth Proportional to 13,337.75, 19,987.52 and 9,799.94

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Solution

The fourth proportional to 13,337.75, 19,987.52 and 9,799.94 is: 14,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.75 : 19,987.52 = 9,799.94 : x
  2. Step 2: Convert to fraction form
    13,337.75/19,987.52 = 9,799.94/x
  3. Step 3: Cross multiply
    13,337.75x = 19,987.52 × 9,799.94
  4. Step 4: Simplify right side
    13,337.75x = 195,876,347.81
  5. Step 5: Solve for x
    x = 195,876,347.81/13,337.75
  6. Step 6: Final answer
    x = 14,685.87

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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.