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Finding the Fourth Proportional to 14,952.69, 20,610.65 and 10,105.90

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Solution

The fourth proportional to 14,952.69, 20,610.65 and 10,105.90 is: 13,929.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,952.69 : 20,610.65 = 10,105.90 : x
  2. Step 2: Convert to fraction form
    14,952.69/20,610.65 = 10,105.90/x
  3. Step 3: Cross multiply
    14,952.69x = 20,610.65 × 10,105.90
  4. Step 4: Simplify right side
    14,952.69x = 208,289,141.57
  5. Step 5: Solve for x
    x = 208,289,141.57/14,952.69
  6. Step 6: Final answer
    x = 13,929.88

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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.