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Finding the Fourth Proportional to 14,422.24, 19,902.72 and 7,798.24

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Solution

The fourth proportional to 14,422.24, 19,902.72 and 7,798.24 is: 10,761.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,422.24 : 19,902.72 = 7,798.24 : x
  2. Step 2: Convert to fraction form
    14,422.24/19,902.72 = 7,798.24/x
  3. Step 3: Cross multiply
    14,422.24x = 19,902.72 × 7,798.24
  4. Step 4: Simplify right side
    14,422.24x = 155,206,187.21
  5. Step 5: Solve for x
    x = 155,206,187.21/14,422.24
  6. Step 6: Final answer
    x = 10,761.59

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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.