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Finding the Fourth Proportional to 61,017.50, 84,144.99 and 47,583.84

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Solution

The fourth proportional to 61,017.50, 84,144.99 and 47,583.84 is: 65,619.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,017.50 : 84,144.99 = 47,583.84 : x
  2. Step 2: Convert to fraction form
    61,017.50/84,144.99 = 47,583.84/x
  3. Step 3: Cross multiply
    61,017.50x = 84,144.99 × 47,583.84
  4. Step 4: Simplify right side
    61,017.50x = 4,003,941,740.96
  5. Step 5: Solve for x
    x = 4,003,941,740.96/61,017.50
  6. Step 6: Final answer
    x = 65,619.57

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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.