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Finding the Fourth Proportional to 10,866.61, 14,995.19 and 6,150.61

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Solution

The fourth proportional to 10,866.61, 14,995.19 and 6,150.61 is: 8,487.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866.61 : 14,995.19 = 6,150.61 : x
  2. Step 2: Convert to fraction form
    10,866.61/14,995.19 = 6,150.61/x
  3. Step 3: Cross multiply
    10,866.61x = 14,995.19 × 6,150.61
  4. Step 4: Simplify right side
    10,866.61x = 92,229,534.81
  5. Step 5: Solve for x
    x = 92,229,534.81/10,866.61
  6. Step 6: Final answer
    x = 8,487.42

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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.