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Finding the Fourth Proportional to 19,773.84, 29,661.12 and 6,626.16

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Solution

The fourth proportional to 19,773.84, 29,661.12 and 6,626.16 is: 9,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.84 : 29,661.12 = 6,626.16 : x
  2. Step 2: Convert to fraction form
    19,773.84/29,661.12 = 6,626.16/x
  3. Step 3: Cross multiply
    19,773.84x = 29,661.12 × 6,626.16
  4. Step 4: Simplify right side
    19,773.84x = 196,539,326.90
  5. Step 5: Solve for x
    x = 196,539,326.90/19,773.84
  6. Step 6: Final answer
    x = 9,939.36

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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.