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Finding the Fourth Proportional to 62,218.84, 85,890.90 and 36,716.80

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Solution

The fourth proportional to 62,218.84, 85,890.90 and 36,716.80 is: 50,686.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,218.84 : 85,890.90 = 36,716.80 : x
  2. Step 2: Convert to fraction form
    62,218.84/85,890.90 = 36,716.80/x
  3. Step 3: Cross multiply
    62,218.84x = 85,890.90 × 36,716.80
  4. Step 4: Simplify right side
    62,218.84x = 3,153,638,997.12
  5. Step 5: Solve for x
    x = 3,153,638,997.12/62,218.84
  6. Step 6: Final answer
    x = 50,686.24

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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.