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Finding the Fourth Proportional to 8,696,728.76, 12,001,507.25 and 4,829,249.57

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Solution

The fourth proportional to 8,696,728.76, 12,001,507.25 and 4,829,249.57 is: 6,664,376.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696,728.76 : 12,001,507.25 = 4,829,249.57 : x
  2. Step 2: Convert to fraction form
    8,696,728.76/12,001,507.25 = 4,829,249.57/x
  3. Step 3: Cross multiply
    8,696,728.76x = 12,001,507.25 × 4,829,249.57
  4. Step 4: Simplify right side
    8,696,728.76x = 57,958,273,642,260.60
  5. Step 5: Solve for x
    x = 57,958,273,642,260.60/8,696,728.76
  6. Step 6: Final answer
    x = 6,664,376.37

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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.