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Finding the Fourth Proportional to 10,642.95, 14,687.19 and 5,927.13

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Solution

The fourth proportional to 10,642.95, 14,687.19 and 5,927.13 is: 8,179.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.95 : 14,687.19 = 5,927.13 : x
  2. Step 2: Convert to fraction form
    10,642.95/14,687.19 = 5,927.13/x
  3. Step 3: Cross multiply
    10,642.95x = 14,687.19 × 5,927.13
  4. Step 4: Simplify right side
    10,642.95x = 87,052,884.46
  5. Step 5: Solve for x
    x = 87,052,884.46/10,642.95
  6. Step 6: Final answer
    x = 8,179.39

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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.