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Finding the Fourth Proportional to 66,085.01, 91,195.86 and 35,870.39

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Solution

The fourth proportional to 66,085.01, 91,195.86 and 35,870.39 is: 49,500.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,085.01 : 91,195.86 = 35,870.39 : x
  2. Step 2: Convert to fraction form
    66,085.01/91,195.86 = 35,870.39/x
  3. Step 3: Cross multiply
    66,085.01x = 91,195.86 × 35,870.39
  4. Step 4: Simplify right side
    66,085.01x = 3,271,230,429.25
  5. Step 5: Solve for x
    x = 3,271,230,429.25/66,085.01
  6. Step 6: Final answer
    x = 49,500.34

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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.