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Finding the Fourth Proportional to 15,141.59, 20,883.53 and 9,838.13

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Solution

The fourth proportional to 15,141.59, 20,883.53 and 9,838.13 is: 13,568.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.59 : 20,883.53 = 9,838.13 : x
  2. Step 2: Convert to fraction form
    15,141.59/20,883.53 = 9,838.13/x
  3. Step 3: Cross multiply
    15,141.59x = 20,883.53 × 9,838.13
  4. Step 4: Simplify right side
    15,141.59x = 205,454,803.18
  5. Step 5: Solve for x
    x = 205,454,803.18/15,141.59
  6. Step 6: Final answer
    x = 13,568.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.