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Finding the Fourth Proportional to 5,224,865.72, 7,838,217.11 and 2,385,264.92

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Solution

The fourth proportional to 5,224,865.72, 7,838,217.11 and 2,385,264.92 is: 3,578,316.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,224,865.72 : 7,838,217.11 = 2,385,264.92 : x
  2. Step 2: Convert to fraction form
    5,224,865.72/7,838,217.11 = 2,385,264.92/x
  3. Step 3: Cross multiply
    5,224,865.72x = 7,838,217.11 × 2,385,264.92
  4. Step 4: Simplify right side
    5,224,865.72x = 18,696,224,274,598.86
  5. Step 5: Solve for x
    x = 18,696,224,274,598.86/5,224,865.72
  6. Step 6: Final answer
    x = 3,578,316.71

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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.