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Finding the Fourth Proportional to 15,262.49, 21,061.99 and 8,548.06

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Solution

The fourth proportional to 15,262.49, 21,061.99 and 8,548.06 is: 11,796.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,262.49 : 21,061.99 = 8,548.06 : x
  2. Step 2: Convert to fraction form
    15,262.49/21,061.99 = 8,548.06/x
  3. Step 3: Cross multiply
    15,262.49x = 21,061.99 × 8,548.06
  4. Step 4: Simplify right side
    15,262.49x = 180,039,154.24
  5. Step 5: Solve for x
    x = 180,039,154.24/15,262.49
  6. Step 6: Final answer
    x = 11,796.18

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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.