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Finding the Fourth Proportional to 14,952.80, 22,429.20 and 8,040.80

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Solution

The fourth proportional to 14,952.80, 22,429.20 and 8,040.80 is: 12,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,952.80 : 22,429.20 = 8,040.80 : x
  2. Step 2: Convert to fraction form
    14,952.80/22,429.20 = 8,040.80/x
  3. Step 3: Cross multiply
    14,952.80x = 22,429.20 × 8,040.80
  4. Step 4: Simplify right side
    14,952.80x = 180,348,711.36
  5. Step 5: Solve for x
    x = 180,348,711.36/14,952.80
  6. Step 6: Final answer
    x = 12,061.20

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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.