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Finding the Fourth Proportional to 89,640.88, 134,462.08 and 25,598.86

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Solution

The fourth proportional to 89,640.88, 134,462.08 and 25,598.86 is: 38,398.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,640.88 : 134,462.08 = 25,598.86 : x
  2. Step 2: Convert to fraction form
    89,640.88/134,462.08 = 25,598.86/x
  3. Step 3: Cross multiply
    89,640.88x = 134,462.08 × 25,598.86
  4. Step 4: Simplify right side
    89,640.88x = 3,442,075,961.23
  5. Step 5: Solve for x
    x = 3,442,075,961.23/89,640.88
  6. Step 6: Final answer
    x = 38,398.51

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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.