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Finding the Fourth Proportional to 8,557.67, 12,829 and 4,113.11

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Solution

The fourth proportional to 8,557.67, 12,829 and 4,113.11 is: 6,166.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.67 : 12,829 = 4,113.11 : x
  2. Step 2: Convert to fraction form
    8,557.67/12,829 = 4,113.11/x
  3. Step 3: Cross multiply
    8,557.67x = 12,829 × 4,113.11
  4. Step 4: Simplify right side
    8,557.67x = 52,767,088.19
  5. Step 5: Solve for x
    x = 52,767,088.19/8,557.67
  6. Step 6: Final answer
    x = 6,166.06

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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.