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Finding the Fourth Proportional to 7,803,894.95, 11,690,693.19 and 5,750,828.85

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Solution

The fourth proportional to 7,803,894.95, 11,690,693.19 and 5,750,828.85 is: 8,615,079.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803,894.95 : 11,690,693.19 = 5,750,828.85 : x
  2. Step 2: Convert to fraction form
    7,803,894.95/11,690,693.19 = 5,750,828.85/x
  3. Step 3: Cross multiply
    7,803,894.95x = 11,690,693.19 × 5,750,828.85
  4. Step 4: Simplify right side
    7,803,894.95x = 67,231,175,673,550.52
  5. Step 5: Solve for x
    x = 67,231,175,673,550.52/7,803,894.95
  6. Step 6: Final answer
    x = 8,615,079.54

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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.