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Finding the Fourth Proportional to 52,090.60, 71,915.70 and 34,216.78

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Solution

The fourth proportional to 52,090.60, 71,915.70 and 34,216.78 is: 47,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,090.60 : 71,915.70 = 34,216.78 : x
  2. Step 2: Convert to fraction form
    52,090.60/71,915.70 = 34,216.78/x
  3. Step 3: Cross multiply
    52,090.60x = 71,915.70 × 34,216.78
  4. Step 4: Simplify right side
    52,090.60x = 2,460,723,685.45
  5. Step 5: Solve for x
    x = 2,460,723,685.45/52,090.60
  6. Step 6: Final answer
    x = 47,239.30

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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.