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Finding the Fourth Proportional to 7,239,353.92, 9,985,717.60 and 4,447,255.36

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Solution

The fourth proportional to 7,239,353.92, 9,985,717.60 and 4,447,255.36 is: 6,134,392.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239,353.92 : 9,985,717.60 = 4,447,255.36 : x
  2. Step 2: Convert to fraction form
    7,239,353.92/9,985,717.60 = 4,447,255.36/x
  3. Step 3: Cross multiply
    7,239,353.92x = 9,985,717.60 × 4,447,255.36
  4. Step 4: Simplify right side
    7,239,353.92x = 44,409,036,120,046.34
  5. Step 5: Solve for x
    x = 44,409,036,120,046.34/7,239,353.92
  6. Step 6: Final answer
    x = 6,134,392.19

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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.