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Finding the Fourth Proportional to 13,287.84, 19,927.44 and 6,266.88

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Solution

The fourth proportional to 13,287.84, 19,927.44 and 6,266.88 is: 9,398.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.84 : 19,927.44 = 6,266.88 : x
  2. Step 2: Convert to fraction form
    13,287.84/19,927.44 = 6,266.88/x
  3. Step 3: Cross multiply
    13,287.84x = 19,927.44 × 6,266.88
  4. Step 4: Simplify right side
    13,287.84x = 124,882,875.19
  5. Step 5: Solve for x
    x = 124,882,875.19/13,287.84
  6. Step 6: Final answer
    x = 9,398.28

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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.