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Finding the Fourth Proportional to 12,316.99, 18,482.78 and 4,531.27

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Solution

The fourth proportional to 12,316.99, 18,482.78 and 4,531.27 is: 6,799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.99 : 18,482.78 = 4,531.27 : x
  2. Step 2: Convert to fraction form
    12,316.99/18,482.78 = 4,531.27/x
  3. Step 3: Cross multiply
    12,316.99x = 18,482.78 × 4,531.27
  4. Step 4: Simplify right side
    12,316.99x = 83,750,443.87
  5. Step 5: Solve for x
    x = 83,750,443.87/12,316.99
  6. Step 6: Final answer
    x = 6,799.59

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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.