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Finding the Fourth Proportional to 17,641.62, 24,303.15 and 15,115.68

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Solution

The fourth proportional to 17,641.62, 24,303.15 and 15,115.68 is: 20,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,641.62 : 24,303.15 = 15,115.68 : x
  2. Step 2: Convert to fraction form
    17,641.62/24,303.15 = 15,115.68/x
  3. Step 3: Cross multiply
    17,641.62x = 24,303.15 × 15,115.68
  4. Step 4: Simplify right side
    17,641.62x = 367,358,638.39
  5. Step 5: Solve for x
    x = 367,358,638.39/17,641.62
  6. Step 6: Final answer
    x = 20,823.41

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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.