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Finding the Fourth Proportional to 12,368.02, 18,552.23 and 3,603

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Solution

The fourth proportional to 12,368.02, 18,552.23 and 3,603 is: 5,404.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.02 : 18,552.23 = 3,603 : x
  2. Step 2: Convert to fraction form
    12,368.02/18,552.23 = 3,603/x
  3. Step 3: Cross multiply
    12,368.02x = 18,552.23 × 3,603
  4. Step 4: Simplify right side
    12,368.02x = 66,843,684.69
  5. Step 5: Solve for x
    x = 66,843,684.69/12,368.02
  6. Step 6: Final answer
    x = 5,404.56

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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.