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Finding the Fourth Proportional to 9,786,465.20, 14,679,697.80 and 4,397,697.20

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Solution

The fourth proportional to 9,786,465.20, 14,679,697.80 and 4,397,697.20 is: 6,596,545.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,786,465.20 : 14,679,697.80 = 4,397,697.20 : x
  2. Step 2: Convert to fraction form
    9,786,465.20/14,679,697.80 = 4,397,697.20/x
  3. Step 3: Cross multiply
    9,786,465.20x = 14,679,697.80 × 4,397,697.20
  4. Step 4: Simplify right side
    9,786,465.20x = 64,556,865,911,906.16
  5. Step 5: Solve for x
    x = 64,556,865,911,906.16/9,786,465.20
  6. Step 6: Final answer
    x = 6,596,545.80

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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.