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Finding the Fourth Proportional to 68,501.84, 94,525.32 and 40,216.40

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Solution

The fourth proportional to 68,501.84, 94,525.32 and 40,216.40 is: 55,494.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,501.84 : 94,525.32 = 40,216.40 : x
  2. Step 2: Convert to fraction form
    68,501.84/94,525.32 = 40,216.40/x
  3. Step 3: Cross multiply
    68,501.84x = 94,525.32 × 40,216.40
  4. Step 4: Simplify right side
    68,501.84x = 3,801,468,079.25
  5. Step 5: Solve for x
    x = 3,801,468,079.25/68,501.84
  6. Step 6: Final answer
    x = 55,494.39

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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.