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Finding the Fourth Proportional to 36,870.94, 55,306.62 and 9,168.94

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Solution

The fourth proportional to 36,870.94, 55,306.62 and 9,168.94 is: 13,753.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,870.94 : 55,306.62 = 9,168.94 : x
  2. Step 2: Convert to fraction form
    36,870.94/55,306.62 = 9,168.94/x
  3. Step 3: Cross multiply
    36,870.94x = 55,306.62 × 9,168.94
  4. Step 4: Simplify right side
    36,870.94x = 507,102,942.12
  5. Step 5: Solve for x
    x = 507,102,942.12/36,870.94
  6. Step 6: Final answer
    x = 13,753.46

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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.