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Finding the Fourth Proportional to 61,879.04, 85,384.32 and 36,738.56

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Solution

The fourth proportional to 61,879.04, 85,384.32 and 36,738.56 is: 50,694.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,879.04 : 85,384.32 = 36,738.56 : x
  2. Step 2: Convert to fraction form
    61,879.04/85,384.32 = 36,738.56/x
  3. Step 3: Cross multiply
    61,879.04x = 85,384.32 × 36,738.56
  4. Step 4: Simplify right side
    61,879.04x = 3,136,896,963.38
  5. Step 5: Solve for x
    x = 3,136,896,963.38/61,879.04
  6. Step 6: Final answer
    x = 50,694.01

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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.