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Finding the Fourth Proportional to 57,258.59, 85,893.77 and 19,818.60

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Solution

The fourth proportional to 57,258.59, 85,893.77 and 19,818.60 is: 29,729.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,258.59 : 85,893.77 = 19,818.60 : x
  2. Step 2: Convert to fraction form
    57,258.59/85,893.77 = 19,818.60/x
  3. Step 3: Cross multiply
    57,258.59x = 85,893.77 × 19,818.60
  4. Step 4: Simplify right side
    57,258.59x = 1,702,294,270.12
  5. Step 5: Solve for x
    x = 1,702,294,270.12/57,258.59
  6. Step 6: Final answer
    x = 29,729.94

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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.