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Finding the Fourth Proportional to 46,221.40, 69,486.78 and 36,478.12

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Solution

The fourth proportional to 46,221.40, 69,486.78 and 36,478.12 is: 54,839.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,221.40 : 69,486.78 = 36,478.12 : x
  2. Step 2: Convert to fraction form
    46,221.40/69,486.78 = 36,478.12/x
  3. Step 3: Cross multiply
    46,221.40x = 69,486.78 × 36,478.12
  4. Step 4: Simplify right side
    46,221.40x = 2,534,747,099.25
  5. Step 5: Solve for x
    x = 2,534,747,099.25/46,221.40
  6. Step 6: Final answer
    x = 54,839.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.