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Finding the Fourth Proportional to 22,836.40, 34,312.20 and 14,520.40

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Solution

The fourth proportional to 22,836.40, 34,312.20 and 14,520.40 is: 21,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,836.40 : 34,312.20 = 14,520.40 : x
  2. Step 2: Convert to fraction form
    22,836.40/34,312.20 = 14,520.40/x
  3. Step 3: Cross multiply
    22,836.40x = 34,312.20 × 14,520.40
  4. Step 4: Simplify right side
    22,836.40x = 498,226,868.88
  5. Step 5: Solve for x
    x = 498,226,868.88/22,836.40
  6. Step 6: Final answer
    x = 21,817.22

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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.