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Finding the Fourth Proportional to 61,184.50, 84,482.39 and 39,684.47

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Solution

The fourth proportional to 61,184.50, 84,482.39 and 39,684.47 is: 54,795.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,184.50 : 84,482.39 = 39,684.47 : x
  2. Step 2: Convert to fraction form
    61,184.50/84,482.39 = 39,684.47/x
  3. Step 3: Cross multiply
    61,184.50x = 84,482.39 × 39,684.47
  4. Step 4: Simplify right side
    61,184.50x = 3,352,638,548.28
  5. Step 5: Solve for x
    x = 3,352,638,548.28/61,184.50
  6. Step 6: Final answer
    x = 54,795.56

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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.