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Finding the Fourth Proportional to 16,253.08, 22,430.84 and 9,879.11

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Solution

The fourth proportional to 16,253.08, 22,430.84 and 9,879.11 is: 13,634.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,253.08 : 22,430.84 = 9,879.11 : x
  2. Step 2: Convert to fraction form
    16,253.08/22,430.84 = 9,879.11/x
  3. Step 3: Cross multiply
    16,253.08x = 22,430.84 × 9,879.11
  4. Step 4: Simplify right side
    16,253.08x = 221,596,735.75
  5. Step 5: Solve for x
    x = 221,596,735.75/16,253.08
  6. Step 6: Final answer
    x = 13,634.14

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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.