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Finding the Fourth Proportional to 52,014.80, 71,719.62 and 49,212.20

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Solution

The fourth proportional to 52,014.80, 71,719.62 and 49,212.20 is: 67,855.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,014.80 : 71,719.62 = 49,212.20 : x
  2. Step 2: Convert to fraction form
    52,014.80/71,719.62 = 49,212.20/x
  3. Step 3: Cross multiply
    52,014.80x = 71,719.62 × 49,212.20
  4. Step 4: Simplify right side
    52,014.80x = 3,529,480,283.36
  5. Step 5: Solve for x
    x = 3,529,480,283.36/52,014.80
  6. Step 6: Final answer
    x = 67,855.31

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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.