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Finding the Fourth Proportional to 58,758.66, 81,087 and 31,901.16

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Solution

The fourth proportional to 58,758.66, 81,087 and 31,901.16 is: 44,023.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,758.66 : 81,087 = 31,901.16 : x
  2. Step 2: Convert to fraction form
    58,758.66/81,087 = 31,901.16/x
  3. Step 3: Cross multiply
    58,758.66x = 81,087 × 31,901.16
  4. Step 4: Simplify right side
    58,758.66x = 2,586,769,360.92
  5. Step 5: Solve for x
    x = 2,586,769,360.92/58,758.66
  6. Step 6: Final answer
    x = 44,023.63

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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.