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Finding the Fourth Proportional to 10,347,786.70, 15,521,680.05 and 9,568,339.90

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Solution

The fourth proportional to 10,347,786.70, 15,521,680.05 and 9,568,339.90 is: 14,352,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347,786.70 : 15,521,680.05 = 9,568,339.90 : x
  2. Step 2: Convert to fraction form
    10,347,786.70/15,521,680.05 = 9,568,339.90/x
  3. Step 3: Cross multiply
    10,347,786.70x = 15,521,680.05 × 9,568,339.90
  4. Step 4: Simplify right side
    10,347,786.70x = 148,516,710,537,449
  5. Step 5: Solve for x
    x = 148,516,710,537,449/10,347,786.70
  6. Step 6: Final answer
    x = 14,352,509.85

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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.