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Finding the Fourth Proportional to 15,991,684.48, 22,069,046.16 and 8,748,340.48

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Solution

The fourth proportional to 15,991,684.48, 22,069,046.16 and 8,748,340.48 is: 12,072,995.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991,684.48 : 22,069,046.16 = 8,748,340.48 : x
  2. Step 2: Convert to fraction form
    15,991,684.48/22,069,046.16 = 8,748,340.48/x
  3. Step 3: Cross multiply
    15,991,684.48x = 22,069,046.16 × 8,748,340.48
  4. Step 4: Simplify right side
    15,991,684.48x = 193,067,529,876,516.56
  5. Step 5: Solve for x
    x = 193,067,529,876,516.56/15,991,684.48
  6. Step 6: Final answer
    x = 12,072,995.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.