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Finding the Fourth Proportional to 66,347.93, 91,564.00 and 49,965.82

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Solution

The fourth proportional to 66,347.93, 91,564.00 and 49,965.82 is: 68,955.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,347.93 : 91,564.00 = 49,965.82 : x
  2. Step 2: Convert to fraction form
    66,347.93/91,564.00 = 49,965.82/x
  3. Step 3: Cross multiply
    66,347.93x = 91,564.00 × 49,965.82
  4. Step 4: Simplify right side
    66,347.93x = 4,575,069,988.66
  5. Step 5: Solve for x
    x = 4,575,069,988.66/66,347.93
  6. Step 6: Final answer
    x = 68,955.73

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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.