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Finding the Fourth Proportional to 17,888.32, 24,683.88 and 9,930.88

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Solution

The fourth proportional to 17,888.32, 24,683.88 and 9,930.88 is: 13,703.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,888.32 : 24,683.88 = 9,930.88 : x
  2. Step 2: Convert to fraction form
    17,888.32/24,683.88 = 9,930.88/x
  3. Step 3: Cross multiply
    17,888.32x = 24,683.88 × 9,930.88
  4. Step 4: Simplify right side
    17,888.32x = 245,132,650.21
  5. Step 5: Solve for x
    x = 245,132,650.21/17,888.32
  6. Step 6: Final answer
    x = 13,703.50

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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.