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Finding the Fourth Proportional to 8,747,457.82, 12,071,496.98 and 4,879,978.97

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Solution

The fourth proportional to 8,747,457.82, 12,071,496.98 and 4,879,978.97 is: 6,734,373.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747,457.82 : 12,071,496.98 = 4,879,978.97 : x
  2. Step 2: Convert to fraction form
    8,747,457.82/12,071,496.98 = 4,879,978.97/x
  3. Step 3: Cross multiply
    8,747,457.82x = 12,071,496.98 × 4,879,978.97
  4. Step 4: Simplify right side
    8,747,457.82x = 58,908,651,350,660.97
  5. Step 5: Solve for x
    x = 58,908,651,350,660.97/8,747,457.82
  6. Step 6: Final answer
    x = 6,734,373.87

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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.