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Finding the Fourth Proportional to 66,418.01, 91,656.86 and 36,610.01

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Solution

The fourth proportional to 66,418.01, 91,656.86 and 36,610.01 is: 50,521.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,418.01 : 91,656.86 = 36,610.01 : x
  2. Step 2: Convert to fraction form
    66,418.01/91,656.86 = 36,610.01/x
  3. Step 3: Cross multiply
    66,418.01x = 91,656.86 × 36,610.01
  4. Step 4: Simplify right side
    66,418.01x = 3,355,558,561.17
  5. Step 5: Solve for x
    x = 3,355,558,561.17/66,418.01
  6. Step 6: Final answer
    x = 50,521.82

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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.