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Finding the Fourth Proportional to 8,574.96, 12,862.43 and 5,631.98

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Solution

The fourth proportional to 8,574.96, 12,862.43 and 5,631.98 is: 8,447.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,574.96 : 12,862.43 = 5,631.98 : x
  2. Step 2: Convert to fraction form
    8,574.96/12,862.43 = 5,631.98/x
  3. Step 3: Cross multiply
    8,574.96x = 12,862.43 × 5,631.98
  4. Step 4: Simplify right side
    8,574.96x = 72,440,920.35
  5. Step 5: Solve for x
    x = 72,440,920.35/8,574.96
  6. Step 6: Final answer
    x = 8,447.96

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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.