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Finding the Fourth Proportional to 8,806,835.20, 13,210,252.80 and 5,775,653.20

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Solution

The fourth proportional to 8,806,835.20, 13,210,252.80 and 5,775,653.20 is: 8,663,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806,835.20 : 13,210,252.80 = 5,775,653.20 : x
  2. Step 2: Convert to fraction form
    8,806,835.20/13,210,252.80 = 5,775,653.20/x
  3. Step 3: Cross multiply
    8,806,835.20x = 13,210,252.80 × 5,775,653.20
  4. Step 4: Simplify right side
    8,806,835.20x = 76,297,838,857,128.97
  5. Step 5: Solve for x
    x = 76,297,838,857,128.97/8,806,835.20
  6. Step 6: Final answer
    x = 8,663,479.80

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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.