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Finding the Fourth Proportional to 66,562.15, 91,855.75 and 36,347.60

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Solution

The fourth proportional to 66,562.15, 91,855.75 and 36,347.60 is: 50,159.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,562.15 : 91,855.75 = 36,347.60 : x
  2. Step 2: Convert to fraction form
    66,562.15/91,855.75 = 36,347.60/x
  3. Step 3: Cross multiply
    66,562.15x = 91,855.75 × 36,347.60
  4. Step 4: Simplify right side
    66,562.15x = 3,338,736,058.70
  5. Step 5: Solve for x
    x = 3,338,736,058.70/66,562.15
  6. Step 6: Final answer
    x = 50,159.68

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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.