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Finding the Fourth Proportional to 14,923.20, 22,384.80 and 13,310.40

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Solution

The fourth proportional to 14,923.20, 22,384.80 and 13,310.40 is: 19,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,923.20 : 22,384.80 = 13,310.40 : x
  2. Step 2: Convert to fraction form
    14,923.20/22,384.80 = 13,310.40/x
  3. Step 3: Cross multiply
    14,923.20x = 22,384.80 × 13,310.40
  4. Step 4: Simplify right side
    14,923.20x = 297,950,641.92
  5. Step 5: Solve for x
    x = 297,950,641.92/14,923.20
  6. Step 6: Final answer
    x = 19,965.60

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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.