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Finding the Fourth Proportional to 66,101.13, 91,219.59 and 35,886.42

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Solution

The fourth proportional to 66,101.13, 91,219.59 and 35,886.42 is: 49,523.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,101.13 : 91,219.59 = 35,886.42 : x
  2. Step 2: Convert to fraction form
    66,101.13/91,219.59 = 35,886.42/x
  3. Step 3: Cross multiply
    66,101.13x = 91,219.59 × 35,886.42
  4. Step 4: Simplify right side
    66,101.13x = 3,273,544,518.97
  5. Step 5: Solve for x
    x = 3,273,544,518.97/66,101.13
  6. Step 6: Final answer
    x = 49,523.28

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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.