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Finding the Fourth Proportional to 7,225,852.48, 9,970,759.92 and 3,961,808.30

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Solution

The fourth proportional to 7,225,852.48, 9,970,759.92 and 3,961,808.30 is: 5,466,792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,225,852.48 : 9,970,759.92 = 3,961,808.30 : x
  2. Step 2: Convert to fraction form
    7,225,852.48/9,970,759.92 = 3,961,808.30/x
  3. Step 3: Cross multiply
    7,225,852.48x = 9,970,759.92 × 3,961,808.30
  4. Step 4: Simplify right side
    7,225,852.48x = 39,502,239,408,363.34
  5. Step 5: Solve for x
    x = 39,502,239,408,363.34/7,225,852.48
  6. Step 6: Final answer
    x = 5,466,792.95

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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.