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Finding the Fourth Proportional to 71,794.04, 99,074.54 and 39,962.04

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Solution

The fourth proportional to 71,794.04, 99,074.54 and 39,962.04 is: 55,146.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,794.04 : 99,074.54 = 39,962.04 : x
  2. Step 2: Convert to fraction form
    71,794.04/99,074.54 = 39,962.04/x
  3. Step 3: Cross multiply
    71,794.04x = 99,074.54 × 39,962.04
  4. Step 4: Simplify right side
    71,794.04x = 3,959,220,730.46
  5. Step 5: Solve for x
    x = 3,959,220,730.46/71,794.04
  6. Step 6: Final answer
    x = 55,146.93

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1.5x scale

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.