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Finding the Fourth Proportional to 11,443.68, 15,796.08 and 6,970.32

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Solution

The fourth proportional to 11,443.68, 15,796.08 and 6,970.32 is: 9,621.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,443.68 : 15,796.08 = 6,970.32 : x
  2. Step 2: Convert to fraction form
    11,443.68/15,796.08 = 6,970.32/x
  3. Step 3: Cross multiply
    11,443.68x = 15,796.08 × 6,970.32
  4. Step 4: Simplify right side
    11,443.68x = 110,103,732.35
  5. Step 5: Solve for x
    x = 110,103,732.35/11,443.68
  6. Step 6: Final answer
    x = 9,621.36

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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.