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Finding the Fourth Proportional to 7,126,750.62, 9,834,988.95 and 3,863,571.66

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Solution

The fourth proportional to 7,126,750.62, 9,834,988.95 and 3,863,571.66 is: 5,331,768.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126,750.62 : 9,834,988.95 = 3,863,571.66 : x
  2. Step 2: Convert to fraction form
    7,126,750.62/9,834,988.95 = 3,863,571.66/x
  3. Step 3: Cross multiply
    7,126,750.62x = 9,834,988.95 × 3,863,571.66
  4. Step 4: Simplify right side
    7,126,750.62x = 37,998,184,583,633.16
  5. Step 5: Solve for x
    x = 37,998,184,583,633.16/7,126,750.62
  6. Step 6: Final answer
    x = 5,331,768.52

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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.