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Finding the Fourth Proportional to 61,282.98, 84,573.72 and 37,405.80

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Solution

The fourth proportional to 61,282.98, 84,573.72 and 37,405.80 is: 51,621.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,282.98 : 84,573.72 = 37,405.80 : x
  2. Step 2: Convert to fraction form
    61,282.98/84,573.72 = 37,405.80/x
  3. Step 3: Cross multiply
    61,282.98x = 84,573.72 × 37,405.80
  4. Step 4: Simplify right side
    61,282.98x = 3,163,547,655.58
  5. Step 5: Solve for x
    x = 3,163,547,655.58/61,282.98
  6. Step 6: Final answer
    x = 51,621.96

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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.