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Finding the Fourth Proportional to 17,647.56, 24,354.02 and 9,689.81

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Solution

The fourth proportional to 17,647.56, 24,354.02 and 9,689.81 is: 13,372.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,647.56 : 24,354.02 = 9,689.81 : x
  2. Step 2: Convert to fraction form
    17,647.56/24,354.02 = 9,689.81/x
  3. Step 3: Cross multiply
    17,647.56x = 24,354.02 × 9,689.81
  4. Step 4: Simplify right side
    17,647.56x = 235,985,887.42
  5. Step 5: Solve for x
    x = 235,985,887.42/17,647.56
  6. Step 6: Final answer
    x = 13,372.16

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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.