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Finding the Fourth Proportional to 3,562.16, 4,915.78 and 1,968.93

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Solution

The fourth proportional to 3,562.16, 4,915.78 and 1,968.93 is: 2,717.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562.16 : 4,915.78 = 1,968.93 : x
  2. Step 2: Convert to fraction form
    3,562.16/4,915.78 = 1,968.93/x
  3. Step 3: Cross multiply
    3,562.16x = 4,915.78 × 1,968.93
  4. Step 4: Simplify right side
    3,562.16x = 9,678,816.87
  5. Step 5: Solve for x
    x = 9,678,816.87/3,562.16
  6. Step 6: Final answer
    x = 2,717.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.