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Finding the Fourth Proportional to 58,854.49, 81,221.21 and 33,360.55

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Solution

The fourth proportional to 58,854.49, 81,221.21 and 33,360.55 is: 46,038.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,854.49 : 81,221.21 = 33,360.55 : x
  2. Step 2: Convert to fraction form
    58,854.49/81,221.21 = 33,360.55/x
  3. Step 3: Cross multiply
    58,854.49x = 81,221.21 × 33,360.55
  4. Step 4: Simplify right side
    58,854.49x = 2,709,584,237.27
  5. Step 5: Solve for x
    x = 2,709,584,237.27/58,854.49
  6. Step 6: Final answer
    x = 46,038.70

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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.