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Finding the Fourth Proportional to 66,567.69, 91,859.96 and 36,347.18

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Solution

The fourth proportional to 66,567.69, 91,859.96 and 36,347.18 is: 50,157.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,567.69 : 91,859.96 = 36,347.18 : x
  2. Step 2: Convert to fraction form
    66,567.69/91,859.96 = 36,347.18/x
  3. Step 3: Cross multiply
    66,567.69x = 91,859.96 × 36,347.18
  4. Step 4: Simplify right side
    66,567.69x = 3,338,849,859.88
  5. Step 5: Solve for x
    x = 3,338,849,859.88/66,567.69
  6. Step 6: Final answer
    x = 50,157.21

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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.