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Finding the Fourth Proportional to 17,889.48, 24,687.88 and 9,931.58

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Solution

The fourth proportional to 17,889.48, 24,687.88 and 9,931.58 is: 13,705.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,889.48 : 24,687.88 = 9,931.58 : x
  2. Step 2: Convert to fraction form
    17,889.48/24,687.88 = 9,931.58/x
  3. Step 3: Cross multiply
    17,889.48x = 24,687.88 × 9,931.58
  4. Step 4: Simplify right side
    17,889.48x = 245,189,655.25
  5. Step 5: Solve for x
    x = 245,189,655.25/17,889.48
  6. Step 6: Final answer
    x = 13,705.80

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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.