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Finding the Fourth Proportional to 66,495.53, 91,764.32 and 36,281.10

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Solution

The fourth proportional to 66,495.53, 91,764.32 and 36,281.10 is: 50,068.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,495.53 : 91,764.32 = 36,281.10 : x
  2. Step 2: Convert to fraction form
    66,495.53/91,764.32 = 36,281.10/x
  3. Step 3: Cross multiply
    66,495.53x = 91,764.32 × 36,281.10
  4. Step 4: Simplify right side
    66,495.53x = 3,329,310,288.95
  5. Step 5: Solve for x
    x = 3,329,310,288.95/66,495.53
  6. Step 6: Final answer
    x = 50,068.19

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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.