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Finding the Fourth Proportional to 14,476.80, 19,951.20 and 10,934.40

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Solution

The fourth proportional to 14,476.80, 19,951.20 and 10,934.40 is: 15,069.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,476.80 : 19,951.20 = 10,934.40 : x
  2. Step 2: Convert to fraction form
    14,476.80/19,951.20 = 10,934.40/x
  3. Step 3: Cross multiply
    14,476.80x = 19,951.20 × 10,934.40
  4. Step 4: Simplify right side
    14,476.80x = 218,154,401.28
  5. Step 5: Solve for x
    x = 218,154,401.28/14,476.80
  6. Step 6: Final answer
    x = 15,069.24

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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.