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Finding the Fourth Proportional to 12,982.26, 19,482.02 and 4,774.26

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Solution

The fourth proportional to 12,982.26, 19,482.02 and 4,774.26 is: 7,164.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.26 : 19,482.02 = 4,774.26 : x
  2. Step 2: Convert to fraction form
    12,982.26/19,482.02 = 4,774.26/x
  3. Step 3: Cross multiply
    12,982.26x = 19,482.02 × 4,774.26
  4. Step 4: Simplify right side
    12,982.26x = 93,012,228.81
  5. Step 5: Solve for x
    x = 93,012,228.81/12,982.26
  6. Step 6: Final answer
    x = 7,164.56

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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.