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Finding the Fourth Proportional to 12,326.76, 18,488.30 and 4,533.76

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Solution

The fourth proportional to 12,326.76, 18,488.30 and 4,533.76 is: 6,799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.76 : 18,488.30 = 4,533.76 : x
  2. Step 2: Convert to fraction form
    12,326.76/18,488.30 = 4,533.76/x
  3. Step 3: Cross multiply
    12,326.76x = 18,488.30 × 4,533.76
  4. Step 4: Simplify right side
    12,326.76x = 83,821,515.01
  5. Step 5: Solve for x
    x = 83,821,515.01/12,326.76
  6. Step 6: Final answer
    x = 6,799.96

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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.