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Finding the Fourth Proportional to 61,320.79, 84,623.42 and 37,121.41

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Solution

The fourth proportional to 61,320.79, 84,623.42 and 37,121.41 is: 51,227.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,320.79 : 84,623.42 = 37,121.41 : x
  2. Step 2: Convert to fraction form
    61,320.79/84,623.42 = 37,121.41/x
  3. Step 3: Cross multiply
    61,320.79x = 84,623.42 × 37,121.41
  4. Step 4: Simplify right side
    61,320.79x = 3,141,340,060.70
  5. Step 5: Solve for x
    x = 3,141,340,060.70/61,320.79
  6. Step 6: Final answer
    x = 51,227.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.