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Finding the Fourth Proportional to 66,323.69, 91,499.58 and 40,822.37

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Solution

The fourth proportional to 66,323.69, 91,499.58 and 40,822.37 is: 56,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,323.69 : 91,499.58 = 40,822.37 : x
  2. Step 2: Convert to fraction form
    66,323.69/91,499.58 = 40,822.37/x
  3. Step 3: Cross multiply
    66,323.69x = 91,499.58 × 40,822.37
  4. Step 4: Simplify right side
    66,323.69x = 3,735,229,252.11
  5. Step 5: Solve for x
    x = 3,735,229,252.11/66,323.69
  6. Step 6: Final answer
    x = 56,318.18

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1.5x scale

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.