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Finding the Fourth Proportional to 17,720.19, 24,453.84 and 9,762.42

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Solution

The fourth proportional to 17,720.19, 24,453.84 and 9,762.42 is: 13,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.19 : 24,453.84 = 9,762.42 : x
  2. Step 2: Convert to fraction form
    17,720.19/24,453.84 = 9,762.42/x
  3. Step 3: Cross multiply
    17,720.19x = 24,453.84 × 9,762.42
  4. Step 4: Simplify right side
    17,720.19x = 238,728,656.69
  5. Step 5: Solve for x
    x = 238,728,656.69/17,720.19
  6. Step 6: Final answer
    x = 13,472.13

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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.