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Finding the Fourth Proportional to 18,392.60, 27,603.30 and 8,533.10

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Solution

The fourth proportional to 18,392.60, 27,603.30 and 8,533.10 is: 12,806.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,392.60 : 27,603.30 = 8,533.10 : x
  2. Step 2: Convert to fraction form
    18,392.60/27,603.30 = 8,533.10/x
  3. Step 3: Cross multiply
    18,392.60x = 27,603.30 × 8,533.10
  4. Step 4: Simplify right side
    18,392.60x = 235,541,719.23
  5. Step 5: Solve for x
    x = 235,541,719.23/18,392.60
  6. Step 6: Final answer
    x = 12,806.33

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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.