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Finding the Fourth Proportional to 7,248,953.61, 10,003,593.22 and 3,985,978.77

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Solution

The fourth proportional to 7,248,953.61, 10,003,593.22 and 3,985,978.77 is: 5,500,671.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,248,953.61 : 10,003,593.22 = 3,985,978.77 : x
  2. Step 2: Convert to fraction form
    7,248,953.61/10,003,593.22 = 3,985,978.77/x
  3. Step 3: Cross multiply
    7,248,953.61x = 10,003,593.22 × 3,985,978.77
  4. Step 4: Simplify right side
    7,248,953.61x = 39,874,110,178,706.05
  5. Step 5: Solve for x
    x = 39,874,110,178,706.05/7,248,953.61
  6. Step 6: Final answer
    x = 5,500,671.18

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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.