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Finding the Fourth Proportional to 19,891.08, 29,840.88 and 6,743.16

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Solution

The fourth proportional to 19,891.08, 29,840.88 and 6,743.16 is: 10,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.08 : 29,840.88 = 6,743.16 : x
  2. Step 2: Convert to fraction form
    19,891.08/29,840.88 = 6,743.16/x
  3. Step 3: Cross multiply
    19,891.08x = 29,840.88 × 6,743.16
  4. Step 4: Simplify right side
    19,891.08x = 201,221,828.38
  5. Step 5: Solve for x
    x = 201,221,828.38/19,891.08
  6. Step 6: Final answer
    x = 10,116.18

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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.