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Finding the Fourth Proportional to 15,757.80, 21,753.54 and 10,748.04

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Solution

The fourth proportional to 15,757.80, 21,753.54 and 10,748.04 is: 14,837.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,757.80 : 21,753.54 = 10,748.04 : x
  2. Step 2: Convert to fraction form
    15,757.80/21,753.54 = 10,748.04/x
  3. Step 3: Cross multiply
    15,757.80x = 21,753.54 × 10,748.04
  4. Step 4: Simplify right side
    15,757.80x = 233,807,918.06
  5. Step 5: Solve for x
    x = 233,807,918.06/15,757.80
  6. Step 6: Final answer
    x = 14,837.60

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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.