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Finding the Fourth Proportional to 60,640.16, 90,969.95 and 25,584.98

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Solution

The fourth proportional to 60,640.16, 90,969.95 and 25,584.98 is: 38,381.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,640.16 : 90,969.95 = 25,584.98 : x
  2. Step 2: Convert to fraction form
    60,640.16/90,969.95 = 25,584.98/x
  3. Step 3: Cross multiply
    60,640.16x = 90,969.95 × 25,584.98
  4. Step 4: Simplify right side
    60,640.16x = 2,327,463,960.46
  5. Step 5: Solve for x
    x = 2,327,463,960.46/60,640.16
  6. Step 6: Final answer
    x = 38,381.56

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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.