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Finding the Fourth Proportional to 12,051.78, 18,069.93 and 5,803.62

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Solution

The fourth proportional to 12,051.78, 18,069.93 and 5,803.62 is: 8,701.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,051.78 : 18,069.93 = 5,803.62 : x
  2. Step 2: Convert to fraction form
    12,051.78/18,069.93 = 5,803.62/x
  3. Step 3: Cross multiply
    12,051.78x = 18,069.93 × 5,803.62
  4. Step 4: Simplify right side
    12,051.78x = 104,871,007.15
  5. Step 5: Solve for x
    x = 104,871,007.15/12,051.78
  6. Step 6: Final answer
    x = 8,701.70

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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.