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Finding the Fourth Proportional to 57,807.40, 86,711.10 and 34,090.60

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Solution

The fourth proportional to 57,807.40, 86,711.10 and 34,090.60 is: 51,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,807.40 : 86,711.10 = 34,090.60 : x
  2. Step 2: Convert to fraction form
    57,807.40/86,711.10 = 34,090.60/x
  3. Step 3: Cross multiply
    57,807.40x = 86,711.10 × 34,090.60
  4. Step 4: Simplify right side
    57,807.40x = 2,956,033,425.66
  5. Step 5: Solve for x
    x = 2,956,033,425.66/57,807.40
  6. Step 6: Final answer
    x = 51,135.90

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1.5x scale

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.