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Finding the Fourth Proportional to 7,866.72, 11,801.16 and 2,935.17

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Solution

The fourth proportional to 7,866.72, 11,801.16 and 2,935.17 is: 4,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866.72 : 11,801.16 = 2,935.17 : x
  2. Step 2: Convert to fraction form
    7,866.72/11,801.16 = 2,935.17/x
  3. Step 3: Cross multiply
    7,866.72x = 11,801.16 × 2,935.17
  4. Step 4: Simplify right side
    7,866.72x = 34,638,410.80
  5. Step 5: Solve for x
    x = 34,638,410.80/7,866.72
  6. Step 6: Final answer
    x = 4,403.16

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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.