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Finding the Fourth Proportional to 66,103.83, 91,220.72 and 35,888.47

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Solution

The fourth proportional to 66,103.83, 91,220.72 and 35,888.47 is: 49,524.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,103.83 : 91,220.72 = 35,888.47 : x
  2. Step 2: Convert to fraction form
    66,103.83/91,220.72 = 35,888.47/x
  3. Step 3: Cross multiply
    66,103.83x = 91,220.72 × 35,888.47
  4. Step 4: Simplify right side
    66,103.83x = 3,273,771,665.60
  5. Step 5: Solve for x
    x = 3,273,771,665.60/66,103.83
  6. Step 6: Final answer
    x = 49,524.69

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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.