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Finding the Fourth Proportional to 8,929.97, 13,393.42 and 2,356.21

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Solution

The fourth proportional to 8,929.97, 13,393.42 and 2,356.21 is: 3,533.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.97 : 13,393.42 = 2,356.21 : x
  2. Step 2: Convert to fraction form
    8,929.97/13,393.42 = 2,356.21/x
  3. Step 3: Cross multiply
    8,929.97x = 13,393.42 × 2,356.21
  4. Step 4: Simplify right side
    8,929.97x = 31,557,698.36
  5. Step 5: Solve for x
    x = 31,557,698.36/8,929.97
  6. Step 6: Final answer
    x = 3,533.91

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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.