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Finding the Fourth Proportional to 62,633.63, 86,386.70 and 53,917.05

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Solution

The fourth proportional to 62,633.63, 86,386.70 and 53,917.05 is: 74,364.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,633.63 : 86,386.70 = 53,917.05 : x
  2. Step 2: Convert to fraction form
    62,633.63/86,386.70 = 53,917.05/x
  3. Step 3: Cross multiply
    62,633.63x = 86,386.70 × 53,917.05
  4. Step 4: Simplify right side
    62,633.63x = 4,657,715,753.65
  5. Step 5: Solve for x
    x = 4,657,715,753.65/62,633.63
  6. Step 6: Final answer
    x = 74,364.46

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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.