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Finding the Fourth Proportional to 12,368.59, 18,552.87 and 3,008.55

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Solution

The fourth proportional to 12,368.59, 18,552.87 and 3,008.55 is: 4,512.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.59 : 18,552.87 = 3,008.55 : x
  2. Step 2: Convert to fraction form
    12,368.59/18,552.87 = 3,008.55/x
  3. Step 3: Cross multiply
    12,368.59x = 18,552.87 × 3,008.55
  4. Step 4: Simplify right side
    12,368.59x = 55,817,144.27
  5. Step 5: Solve for x
    x = 55,817,144.27/12,368.59
  6. Step 6: Final answer
    x = 4,512.81

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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.