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Finding the Fourth Proportional to 66,281.58, 91,462.23 and 37,983.42

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Solution

The fourth proportional to 66,281.58, 91,462.23 and 37,983.42 is: 52,413.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,281.58 : 91,462.23 = 37,983.42 : x
  2. Step 2: Convert to fraction form
    66,281.58/91,462.23 = 37,983.42/x
  3. Step 3: Cross multiply
    66,281.58x = 91,462.23 × 37,983.42
  4. Step 4: Simplify right side
    66,281.58x = 3,474,048,296.23
  5. Step 5: Solve for x
    x = 3,474,048,296.23/66,281.58
  6. Step 6: Final answer
    x = 52,413.48

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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.