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Finding the Fourth Proportional to 18,754.48, 25,885.48 and 10,801.28

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Solution

The fourth proportional to 18,754.48, 25,885.48 and 10,801.28 is: 14,908.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,754.48 : 25,885.48 = 10,801.28 : x
  2. Step 2: Convert to fraction form
    18,754.48/25,885.48 = 10,801.28/x
  3. Step 3: Cross multiply
    18,754.48x = 25,885.48 × 10,801.28
  4. Step 4: Simplify right side
    18,754.48x = 279,596,317.41
  5. Step 5: Solve for x
    x = 279,596,317.41/18,754.48
  6. Step 6: Final answer
    x = 14,908.24

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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.