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Finding the Fourth Proportional to 89,715.90, 134,549.55 and 26,535.90

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Solution

The fourth proportional to 89,715.90, 134,549.55 and 26,535.90 is: 39,796.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,715.90 : 134,549.55 = 26,535.90 : x
  2. Step 2: Convert to fraction form
    89,715.90/134,549.55 = 26,535.90/x
  3. Step 3: Cross multiply
    89,715.90x = 134,549.55 × 26,535.90
  4. Step 4: Simplify right side
    89,715.90x = 3,570,393,403.85
  5. Step 5: Solve for x
    x = 3,570,393,403.85/89,715.90
  6. Step 6: Final answer
    x = 39,796.66

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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.