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Finding the Fourth Proportional to 16,613.70, 24,920.55 and 16,440.90

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Solution

The fourth proportional to 16,613.70, 24,920.55 and 16,440.90 is: 24,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,613.70 : 24,920.55 = 16,440.90 : x
  2. Step 2: Convert to fraction form
    16,613.70/24,920.55 = 16,440.90/x
  3. Step 3: Cross multiply
    16,613.70x = 24,920.55 × 16,440.90
  4. Step 4: Simplify right side
    16,613.70x = 409,716,270.50
  5. Step 5: Solve for x
    x = 409,716,270.50/16,613.70
  6. Step 6: Final answer
    x = 24,661.35

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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.