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Finding the Fourth Proportional to 7,551.94, 10,422.12 and 4,721.08

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Solution

The fourth proportional to 7,551.94, 10,422.12 and 4,721.08 is: 6,515.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.94 : 10,422.12 = 4,721.08 : x
  2. Step 2: Convert to fraction form
    7,551.94/10,422.12 = 4,721.08/x
  3. Step 3: Cross multiply
    7,551.94x = 10,422.12 × 4,721.08
  4. Step 4: Simplify right side
    7,551.94x = 49,203,662.29
  5. Step 5: Solve for x
    x = 49,203,662.29/7,551.94
  6. Step 6: Final answer
    x = 6,515.37

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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.