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Finding the Fourth Proportional to 10,899.99, 15,046.56 and 7,367.99

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Solution

The fourth proportional to 10,899.99, 15,046.56 and 7,367.99 is: 10,170.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.99 : 15,046.56 = 7,367.99 : x
  2. Step 2: Convert to fraction form
    10,899.99/15,046.56 = 7,367.99/x
  3. Step 3: Cross multiply
    10,899.99x = 15,046.56 × 7,367.99
  4. Step 4: Simplify right side
    10,899.99x = 110,862,903.61
  5. Step 5: Solve for x
    x = 110,862,903.61/10,899.99
  6. Step 6: Final answer
    x = 10,170.92

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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.