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Finding the Fourth Proportional to 18,894.61, 28,303.03 and 11,099.17

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Solution

The fourth proportional to 18,894.61, 28,303.03 and 11,099.17 is: 16,625.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,894.61 : 28,303.03 = 11,099.17 : x
  2. Step 2: Convert to fraction form
    18,894.61/28,303.03 = 11,099.17/x
  3. Step 3: Cross multiply
    18,894.61x = 28,303.03 × 11,099.17
  4. Step 4: Simplify right side
    18,894.61x = 314,140,141.49
  5. Step 5: Solve for x
    x = 314,140,141.49/18,894.61
  6. Step 6: Final answer
    x = 16,625.91

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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.