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Finding the Fourth Proportional to 11,762,689.60, 17,644,552.80 and 6,645,044.80

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Solution

The fourth proportional to 11,762,689.60, 17,644,552.80 and 6,645,044.80 is: 9,967,860.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,762,689.60 : 17,644,552.80 = 6,645,044.80 : x
  2. Step 2: Convert to fraction form
    11,762,689.60/17,644,552.80 = 6,645,044.80/x
  3. Step 3: Cross multiply
    11,762,689.60x = 17,644,552.80 × 6,645,044.80
  4. Step 4: Simplify right side
    11,762,689.60x = 117,248,843,831,965.44
  5. Step 5: Solve for x
    x = 117,248,843,831,965.44/11,762,689.60
  6. Step 6: Final answer
    x = 9,967,860.06

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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.