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Finding the Fourth Proportional to 69,924.75, 96,492.78 and 39,706.08

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Solution

The fourth proportional to 69,924.75, 96,492.78 and 39,706.08 is: 54,792.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,924.75 : 96,492.78 = 39,706.08 : x
  2. Step 2: Convert to fraction form
    69,924.75/96,492.78 = 39,706.08/x
  3. Step 3: Cross multiply
    69,924.75x = 96,492.78 × 39,706.08
  4. Step 4: Simplify right side
    69,924.75x = 3,831,350,042.10
  5. Step 5: Solve for x
    x = 3,831,350,042.10/69,924.75
  6. Step 6: Final answer
    x = 54,792.47

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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.