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Finding the Fourth Proportional to 15,681.25, 23,532.90 and 7,361.54

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Solution

The fourth proportional to 15,681.25, 23,532.90 and 7,361.54 is: 11,047.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,681.25 : 23,532.90 = 7,361.54 : x
  2. Step 2: Convert to fraction form
    15,681.25/23,532.90 = 7,361.54/x
  3. Step 3: Cross multiply
    15,681.25x = 23,532.90 × 7,361.54
  4. Step 4: Simplify right side
    15,681.25x = 173,238,230.19
  5. Step 5: Solve for x
    x = 173,238,230.19/15,681.25
  6. Step 6: Final answer
    x = 11,047.48

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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.