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Finding the Fourth Proportional to 6,868,093.60, 10,310,434.80 and 6,818,327.20

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Solution

The fourth proportional to 6,868,093.60, 10,310,434.80 and 6,818,327.20 is: 10,235,725.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868,093.60 : 10,310,434.80 = 6,818,327.20 : x
  2. Step 2: Convert to fraction form
    6,868,093.60/10,310,434.80 = 6,818,327.20/x
  3. Step 3: Cross multiply
    6,868,093.60x = 10,310,434.80 × 6,818,327.20
  4. Step 4: Simplify right side
    6,868,093.60x = 70,299,918,040,666.57
  5. Step 5: Solve for x
    x = 70,299,918,040,666.57/6,868,093.60
  6. Step 6: Final answer
    x = 10,235,725.10

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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.