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Finding the Fourth Proportional to 38,597.94, 57,896.91 and 21,058.20

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Solution

The fourth proportional to 38,597.94, 57,896.91 and 21,058.20 is: 31,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,597.94 : 57,896.91 = 21,058.20 : x
  2. Step 2: Convert to fraction form
    38,597.94/57,896.91 = 21,058.20/x
  3. Step 3: Cross multiply
    38,597.94x = 57,896.91 × 21,058.20
  4. Step 4: Simplify right side
    38,597.94x = 1,219,204,710.16
  5. Step 5: Solve for x
    x = 1,219,204,710.16/38,597.94
  6. Step 6: Final answer
    x = 31,587.30

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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.