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Finding the Fourth Proportional to 65,792, 98,688.84 and 19,044.92

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Solution

The fourth proportional to 65,792, 98,688.84 and 19,044.92 is: 28,567.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,792 : 98,688.84 = 19,044.92 : x
  2. Step 2: Convert to fraction form
    65,792/98,688.84 = 19,044.92/x
  3. Step 3: Cross multiply
    65,792x = 98,688.84 × 19,044.92
  4. Step 4: Simplify right side
    65,792x = 1,879,521,062.69
  5. Step 5: Solve for x
    x = 1,879,521,062.69/65,792
  6. Step 6: Final answer
    x = 28,567.62

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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.