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Finding the Fourth Proportional to 19,753.40, 27,259.71 and 10,800.98

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Solution

The fourth proportional to 19,753.40, 27,259.71 and 10,800.98 is: 14,905.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,753.40 : 27,259.71 = 10,800.98 : x
  2. Step 2: Convert to fraction form
    19,753.40/27,259.71 = 10,800.98/x
  3. Step 3: Cross multiply
    19,753.40x = 27,259.71 × 10,800.98
  4. Step 4: Simplify right side
    19,753.40x = 294,431,507.94
  5. Step 5: Solve for x
    x = 294,431,507.94/19,753.40
  6. Step 6: Final answer
    x = 14,905.36

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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.