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Finding the Fourth Proportional to 17,647.42, 24,353.74 and 9,689.98

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Solution

The fourth proportional to 17,647.42, 24,353.74 and 9,689.98 is: 13,372.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,647.42 : 24,353.74 = 9,689.98 : x
  2. Step 2: Convert to fraction form
    17,647.42/24,353.74 = 9,689.98/x
  3. Step 3: Cross multiply
    17,647.42x = 24,353.74 × 9,689.98
  4. Step 4: Simplify right side
    17,647.42x = 235,987,253.53
  5. Step 5: Solve for x
    x = 235,987,253.53/17,647.42
  6. Step 6: Final answer
    x = 13,372.34

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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.