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Finding the Fourth Proportional to 16,822.40, 25,108.80 and 14,854.40

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Solution

The fourth proportional to 16,822.40, 25,108.80 and 14,854.40 is: 22,171.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,822.40 : 25,108.80 = 14,854.40 : x
  2. Step 2: Convert to fraction form
    16,822.40/25,108.80 = 14,854.40/x
  3. Step 3: Cross multiply
    16,822.40x = 25,108.80 × 14,854.40
  4. Step 4: Simplify right side
    16,822.40x = 372,976,158.72
  5. Step 5: Solve for x
    x = 372,976,158.72/16,822.40
  6. Step 6: Final answer
    x = 22,171.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.