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Finding the Fourth Proportional to 15,043.13, 20,737.80 and 10,552.94

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Solution

The fourth proportional to 15,043.13, 20,737.80 and 10,552.94 is: 14,547.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043.13 : 20,737.80 = 10,552.94 : x
  2. Step 2: Convert to fraction form
    15,043.13/20,737.80 = 10,552.94/x
  3. Step 3: Cross multiply
    15,043.13x = 20,737.80 × 10,552.94
  4. Step 4: Simplify right side
    15,043.13x = 218,844,759.13
  5. Step 5: Solve for x
    x = 218,844,759.13/15,043.13
  6. Step 6: Final answer
    x = 14,547.82

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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.