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Finding the Fourth Proportional to 8,849.03, 12,211.90 and 4,870.39

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Solution

The fourth proportional to 8,849.03, 12,211.90 and 4,870.39 is: 6,721.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,849.03 : 12,211.90 = 4,870.39 : x
  2. Step 2: Convert to fraction form
    8,849.03/12,211.90 = 4,870.39/x
  3. Step 3: Cross multiply
    8,849.03x = 12,211.90 × 4,870.39
  4. Step 4: Simplify right side
    8,849.03x = 59,476,691.29
  5. Step 5: Solve for x
    x = 59,476,691.29/8,849.03
  6. Step 6: Final answer
    x = 6,721.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.