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Finding the Fourth Proportional to 11,658,906.60, 17,488,359.90 and 10,430,687.40

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Solution

The fourth proportional to 11,658,906.60, 17,488,359.90 and 10,430,687.40 is: 15,646,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,658,906.60 : 17,488,359.90 = 10,430,687.40 : x
  2. Step 2: Convert to fraction form
    11,658,906.60/17,488,359.90 = 10,430,687.40/x
  3. Step 3: Cross multiply
    11,658,906.60x = 17,488,359.90 × 10,430,687.40
  4. Step 4: Simplify right side
    11,658,906.60x = 182,415,615,255,595.25
  5. Step 5: Solve for x
    x = 182,415,615,255,595.25/11,658,906.60
  6. Step 6: Final answer
    x = 15,646,031.10

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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.