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Finding the Fourth Proportional to 16,587.70, 24,820.80 and 12,213.70

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Solution

The fourth proportional to 16,587.70, 24,820.80 and 12,213.70 is: 18,275.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,587.70 : 24,820.80 = 12,213.70 : x
  2. Step 2: Convert to fraction form
    16,587.70/24,820.80 = 12,213.70/x
  3. Step 3: Cross multiply
    16,587.70x = 24,820.80 × 12,213.70
  4. Step 4: Simplify right side
    16,587.70x = 303,153,804.96
  5. Step 5: Solve for x
    x = 303,153,804.96/16,587.70
  6. Step 6: Final answer
    x = 18,275.82

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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.