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Finding the Fourth Proportional to 66,477.72, 91,739.38 and 36,263.08

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Solution

The fourth proportional to 66,477.72, 91,739.38 and 36,263.08 is: 50,043.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,477.72 : 91,739.38 = 36,263.08 : x
  2. Step 2: Convert to fraction form
    66,477.72/91,739.38 = 36,263.08/x
  3. Step 3: Cross multiply
    66,477.72x = 91,739.38 × 36,263.08
  4. Step 4: Simplify right side
    66,477.72x = 3,326,752,476.09
  5. Step 5: Solve for x
    x = 3,326,752,476.09/66,477.72
  6. Step 6: Final answer
    x = 50,043.12

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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.