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Finding the Fourth Proportional to 16,624.85, 22,939.16 and 9,911.10

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Solution

The fourth proportional to 16,624.85, 22,939.16 and 9,911.10 is: 13,675.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,624.85 : 22,939.16 = 9,911.10 : x
  2. Step 2: Convert to fraction form
    16,624.85/22,939.16 = 9,911.10/x
  3. Step 3: Cross multiply
    16,624.85x = 22,939.16 × 9,911.10
  4. Step 4: Simplify right side
    16,624.85x = 227,352,259.12
  5. Step 5: Solve for x
    x = 227,352,259.12/16,624.85
  6. Step 6: Final answer
    x = 13,675.45

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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.