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Finding the Fourth Proportional to 18,957.24, 28,431 and 10,060.47

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Solution

The fourth proportional to 18,957.24, 28,431 and 10,060.47 is: 15,088.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,957.24 : 28,431 = 10,060.47 : x
  2. Step 2: Convert to fraction form
    18,957.24/28,431 = 10,060.47/x
  3. Step 3: Cross multiply
    18,957.24x = 28,431 × 10,060.47
  4. Step 4: Simplify right side
    18,957.24x = 286,029,222.57
  5. Step 5: Solve for x
    x = 286,029,222.57/18,957.24
  6. Step 6: Final answer
    x = 15,088.13

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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.