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Finding the Fourth Proportional to 15,605.42, 23,408.04 and 5,217.08

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Solution

The fourth proportional to 15,605.42, 23,408.04 and 5,217.08 is: 7,825.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.42 : 23,408.04 = 5,217.08 : x
  2. Step 2: Convert to fraction form
    15,605.42/23,408.04 = 5,217.08/x
  3. Step 3: Cross multiply
    15,605.42x = 23,408.04 × 5,217.08
  4. Step 4: Simplify right side
    15,605.42x = 122,121,617.32
  5. Step 5: Solve for x
    x = 122,121,617.32/15,605.42
  6. Step 6: Final answer
    x = 7,825.59

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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.