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Finding the Fourth Proportional to 6,175,781.64, 8,504,961.30 and 5,558,678.28

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Solution

The fourth proportional to 6,175,781.64, 8,504,961.30 and 5,558,678.28 is: 7,655,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,175,781.64 : 8,504,961.30 = 5,558,678.28 : x
  2. Step 2: Convert to fraction form
    6,175,781.64/8,504,961.30 = 5,558,678.28/x
  3. Step 3: Cross multiply
    6,175,781.64x = 8,504,961.30 × 5,558,678.28
  4. Step 4: Simplify right side
    6,175,781.64x = 47,276,343,650,550.57
  5. Step 5: Solve for x
    x = 47,276,343,650,550.57/6,175,781.64
  6. Step 6: Final answer
    x = 7,655,119.05

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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.