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Finding the Fourth Proportional to 61,261.70, 91,868.76 and 23,816.78

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Solution

The fourth proportional to 61,261.70, 91,868.76 and 23,816.78 is: 35,715.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,261.70 : 91,868.76 = 23,816.78 : x
  2. Step 2: Convert to fraction form
    61,261.70/91,868.76 = 23,816.78/x
  3. Step 3: Cross multiply
    61,261.70x = 91,868.76 × 23,816.78
  4. Step 4: Simplify right side
    61,261.70x = 2,188,018,045.79
  5. Step 5: Solve for x
    x = 2,188,018,045.79/61,261.70
  6. Step 6: Final answer
    x = 35,715.92

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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.