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Finding the Fourth Proportional to 8,938.70, 13,412.16 and 4,559.24

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Solution

The fourth proportional to 8,938.70, 13,412.16 and 4,559.24 is: 6,840.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.70 : 13,412.16 = 4,559.24 : x
  2. Step 2: Convert to fraction form
    8,938.70/13,412.16 = 4,559.24/x
  3. Step 3: Cross multiply
    8,938.70x = 13,412.16 × 4,559.24
  4. Step 4: Simplify right side
    8,938.70x = 61,149,201.62
  5. Step 5: Solve for x
    x = 61,149,201.62/8,938.70
  6. Step 6: Final answer
    x = 6,840.95

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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.