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Finding the Fourth Proportional to 66,307.60, 91,501.66 and 36,092.96

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Solution

The fourth proportional to 66,307.60, 91,501.66 and 36,092.96 is: 49,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,307.60 : 91,501.66 = 36,092.96 : x
  2. Step 2: Convert to fraction form
    66,307.60/91,501.66 = 36,092.96/x
  3. Step 3: Cross multiply
    66,307.60x = 91,501.66 × 36,092.96
  4. Step 4: Simplify right side
    66,307.60x = 3,302,565,754.31
  5. Step 5: Solve for x
    x = 3,302,565,754.31/66,307.60
  6. Step 6: Final answer
    x = 49,806.75

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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.