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Finding the Fourth Proportional to 58,618.49, 80,893.40 and 31,761.72

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Solution

The fourth proportional to 58,618.49, 80,893.40 and 31,761.72 is: 43,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,618.49 : 80,893.40 = 31,761.72 : x
  2. Step 2: Convert to fraction form
    58,618.49/80,893.40 = 31,761.72/x
  3. Step 3: Cross multiply
    58,618.49x = 80,893.40 × 31,761.72
  4. Step 4: Simplify right side
    58,618.49x = 2,569,313,441.24
  5. Step 5: Solve for x
    x = 2,569,313,441.24/58,618.49
  6. Step 6: Final answer
    x = 43,831.11

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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.