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Finding the Fourth Proportional to 19,386, 29,055.52 and 8,841.57

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Solution

The fourth proportional to 19,386, 29,055.52 and 8,841.57 is: 13,251.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386 : 29,055.52 = 8,841.57 : x
  2. Step 2: Convert to fraction form
    19,386/29,055.52 = 8,841.57/x
  3. Step 3: Cross multiply
    19,386x = 29,055.52 × 8,841.57
  4. Step 4: Simplify right side
    19,386x = 256,896,413.97
  5. Step 5: Solve for x
    x = 256,896,413.97/19,386
  6. Step 6: Final answer
    x = 13,251.65

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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.