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Finding the Fourth Proportional to 65,658,792.65, 98,493,273.97 and 21,939,703.10

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Solution

The fourth proportional to 65,658,792.65, 98,493,273.97 and 21,939,703.10 is: 32,911,253.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,658,792.65 : 98,493,273.97 = 21,939,703.10 : x
  2. Step 2: Convert to fraction form
    65,658,792.65/98,493,273.97 = 21,939,703.10/x
  3. Step 3: Cross multiply
    65,658,792.65x = 98,493,273.97 × 21,939,703.10
  4. Step 4: Simplify right side
    65,658,792.65x = 2,160,913,188,070,792.50
  5. Step 5: Solve for x
    x = 2,160,913,188,070,792.50/65,658,792.65
  6. Step 6: Final answer
    x = 32,911,253.79

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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.