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Finding the Fourth Proportional to 68,992.20, 103,488.30 and 24,620.40

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Solution

The fourth proportional to 68,992.20, 103,488.30 and 24,620.40 is: 36,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,992.20 : 103,488.30 = 24,620.40 : x
  2. Step 2: Convert to fraction form
    68,992.20/103,488.30 = 24,620.40/x
  3. Step 3: Cross multiply
    68,992.20x = 103,488.30 × 24,620.40
  4. Step 4: Simplify right side
    68,992.20x = 2,547,923,341.32
  5. Step 5: Solve for x
    x = 2,547,923,341.32/68,992.20
  6. Step 6: Final answer
    x = 36,930.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.