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Finding the Fourth Proportional to 4,711.78, 7,061.52 and 1,935.16

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Solution

The fourth proportional to 4,711.78, 7,061.52 and 1,935.16 is: 2,900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,711.78 : 7,061.52 = 1,935.16 : x
  2. Step 2: Convert to fraction form
    4,711.78/7,061.52 = 1,935.16/x
  3. Step 3: Cross multiply
    4,711.78x = 7,061.52 × 1,935.16
  4. Step 4: Simplify right side
    4,711.78x = 13,665,171.04
  5. Step 5: Solve for x
    x = 13,665,171.04/4,711.78
  6. Step 6: Final answer
    x = 2,900.21

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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.