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Finding the Fourth Proportional to 5,987,698.20, 8,981,547.30 and 1,728,005.40

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Solution

The fourth proportional to 5,987,698.20, 8,981,547.30 and 1,728,005.40 is: 2,592,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987,698.20 : 8,981,547.30 = 1,728,005.40 : x
  2. Step 2: Convert to fraction form
    5,987,698.20/8,981,547.30 = 1,728,005.40/x
  3. Step 3: Cross multiply
    5,987,698.20x = 8,981,547.30 × 1,728,005.40
  4. Step 4: Simplify right side
    5,987,698.20x = 15,520,162,234,755.42
  5. Step 5: Solve for x
    x = 15,520,162,234,755.42/5,987,698.20
  6. Step 6: Final answer
    x = 2,592,008.10

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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.