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Finding the Fourth Proportional to 7,796,718.96, 11,676,911.76 and 7,581,479.28

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Solution

The fourth proportional to 7,796,718.96, 11,676,911.76 and 7,581,479.28 is: 11,354,553.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,796,718.96 : 11,676,911.76 = 7,581,479.28 : x
  2. Step 2: Convert to fraction form
    7,796,718.96/11,676,911.76 = 7,581,479.28/x
  3. Step 3: Cross multiply
    7,796,718.96x = 11,676,911.76 × 7,581,479.28
  4. Step 4: Simplify right side
    7,796,718.96x = 88,528,264,562,828.33
  5. Step 5: Solve for x
    x = 88,528,264,562,828.33/7,796,718.96
  6. Step 6: Final answer
    x = 11,354,553.76

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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.