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Finding the Fourth Proportional to 85,550.60, 128,235.18 and 32,937.32

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Solution

The fourth proportional to 85,550.60, 128,235.18 and 32,937.32 is: 49,371.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,550.60 : 128,235.18 = 32,937.32 : x
  2. Step 2: Convert to fraction form
    85,550.60/128,235.18 = 32,937.32/x
  3. Step 3: Cross multiply
    85,550.60x = 128,235.18 × 32,937.32
  4. Step 4: Simplify right side
    85,550.60x = 4,223,723,158.92
  5. Step 5: Solve for x
    x = 4,223,723,158.92/85,550.60
  6. Step 6: Final answer
    x = 49,371.05

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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.