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Finding the Fourth Proportional to 57,054.60, 85,510.62 and 39,383.64

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Solution

The fourth proportional to 57,054.60, 85,510.62 and 39,383.64 is: 59,026.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,054.60 : 85,510.62 = 39,383.64 : x
  2. Step 2: Convert to fraction form
    57,054.60/85,510.62 = 39,383.64/x
  3. Step 3: Cross multiply
    57,054.60x = 85,510.62 × 39,383.64
  4. Step 4: Simplify right side
    57,054.60x = 3,367,719,474.26
  5. Step 5: Solve for x
    x = 3,367,719,474.26/57,054.60
  6. Step 6: Final answer
    x = 59,026.26

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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.