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Finding the Fourth Proportional to 8,737.61, 12,055.92 and 7,326.99

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Solution

The fourth proportional to 8,737.61, 12,055.92 and 7,326.99 is: 10,109.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.61 : 12,055.92 = 7,326.99 : x
  2. Step 2: Convert to fraction form
    8,737.61/12,055.92 = 7,326.99/x
  3. Step 3: Cross multiply
    8,737.61x = 12,055.92 × 7,326.99
  4. Step 4: Simplify right side
    8,737.61x = 88,333,605.28
  5. Step 5: Solve for x
    x = 88,333,605.28/8,737.61
  6. Step 6: Final answer
    x = 10,109.59

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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.