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Finding the Fourth Proportional to 7,881,582.88, 10,876,602.96 and 4,259,910.88

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Solution

The fourth proportional to 7,881,582.88, 10,876,602.96 and 4,259,910.88 is: 5,878,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,582.88 : 10,876,602.96 = 4,259,910.88 : x
  2. Step 2: Convert to fraction form
    7,881,582.88/10,876,602.96 = 4,259,910.88/x
  3. Step 3: Cross multiply
    7,881,582.88x = 10,876,602.96 × 4,259,910.88
  4. Step 4: Simplify right side
    7,881,582.88x = 46,333,359,286,744.21
  5. Step 5: Solve for x
    x = 46,333,359,286,744.21/7,881,582.88
  6. Step 6: Final answer
    x = 5,878,687.06

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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.