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Finding the Fourth Proportional to 14,920.80, 22,429.80 and 10,568.40

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Solution

The fourth proportional to 14,920.80, 22,429.80 and 10,568.40 is: 15,887.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.80 : 22,429.80 = 10,568.40 : x
  2. Step 2: Convert to fraction form
    14,920.80/22,429.80 = 10,568.40/x
  3. Step 3: Cross multiply
    14,920.80x = 22,429.80 × 10,568.40
  4. Step 4: Simplify right side
    14,920.80x = 237,047,098.32
  5. Step 5: Solve for x
    x = 237,047,098.32/14,920.80
  6. Step 6: Final answer
    x = 15,887.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.