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Finding the Fourth Proportional to 8,895.42, 12,266.55 and 5,357.97

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Solution

The fourth proportional to 8,895.42, 12,266.55 and 5,357.97 is: 7,388.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,895.42 : 12,266.55 = 5,357.97 : x
  2. Step 2: Convert to fraction form
    8,895.42/12,266.55 = 5,357.97/x
  3. Step 3: Cross multiply
    8,895.42x = 12,266.55 × 5,357.97
  4. Step 4: Simplify right side
    8,895.42x = 65,723,806.90
  5. Step 5: Solve for x
    x = 65,723,806.90/8,895.42
  6. Step 6: Final answer
    x = 7,388.50

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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.