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Finding the Fourth Proportional to 85,216.60, 127,813.70 and 26,058.20

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Solution

The fourth proportional to 85,216.60, 127,813.70 and 26,058.20 is: 39,083.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,216.60 : 127,813.70 = 26,058.20 : x
  2. Step 2: Convert to fraction form
    85,216.60/127,813.70 = 26,058.20/x
  3. Step 3: Cross multiply
    85,216.60x = 127,813.70 × 26,058.20
  4. Step 4: Simplify right side
    85,216.60x = 3,330,594,957.34
  5. Step 5: Solve for x
    x = 3,330,594,957.34/85,216.60
  6. Step 6: Final answer
    x = 39,083.88

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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.