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Finding the Fourth Proportional to 58,554.71, 87,862.81 and 31,919.79

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Solution

The fourth proportional to 58,554.71, 87,862.81 and 31,919.79 is: 47,896.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,554.71 : 87,862.81 = 31,919.79 : x
  2. Step 2: Convert to fraction form
    58,554.71/87,862.81 = 31,919.79/x
  3. Step 3: Cross multiply
    58,554.71x = 87,862.81 × 31,919.79
  4. Step 4: Simplify right side
    58,554.71x = 2,804,562,444.01
  5. Step 5: Solve for x
    x = 2,804,562,444.01/58,554.71
  6. Step 6: Final answer
    x = 47,896.44

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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.