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Finding the Fourth Proportional to 85,549.60, 128,233.68 and 32,936.32

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Solution

The fourth proportional to 85,549.60, 128,233.68 and 32,936.32 is: 49,369.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,549.60 : 128,233.68 = 32,936.32 : x
  2. Step 2: Convert to fraction form
    85,549.60/128,233.68 = 32,936.32/x
  3. Step 3: Cross multiply
    85,549.60x = 128,233.68 × 32,936.32
  4. Step 4: Simplify right side
    85,549.60x = 4,223,545,519.26
  5. Step 5: Solve for x
    x = 4,223,545,519.26/85,549.60
  6. Step 6: Final answer
    x = 49,369.55

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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.