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Finding the Fourth Proportional to 5,886.90, 8,872.68 and 5,074.98

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Solution

The fourth proportional to 5,886.90, 8,872.68 and 5,074.98 is: 7,648.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,886.90 : 8,872.68 = 5,074.98 : x
  2. Step 2: Convert to fraction form
    5,886.90/8,872.68 = 5,074.98/x
  3. Step 3: Cross multiply
    5,886.90x = 8,872.68 × 5,074.98
  4. Step 4: Simplify right side
    5,886.90x = 45,028,673.55
  5. Step 5: Solve for x
    x = 45,028,673.55/5,886.90
  6. Step 6: Final answer
    x = 7,648.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.