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Finding the Fourth Proportional to 18,881.55, 28,322.95 and 5,733.88

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Solution

The fourth proportional to 18,881.55, 28,322.95 and 5,733.88 is: 8,601.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.55 : 28,322.95 = 5,733.88 : x
  2. Step 2: Convert to fraction form
    18,881.55/28,322.95 = 5,733.88/x
  3. Step 3: Cross multiply
    18,881.55x = 28,322.95 × 5,733.88
  4. Step 4: Simplify right side
    18,881.55x = 162,400,396.55
  5. Step 5: Solve for x
    x = 162,400,396.55/18,881.55
  6. Step 6: Final answer
    x = 8,601.01

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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.