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Finding the Fourth Proportional to 19,758.71, 27,267.03 and 10,807.05

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Solution

The fourth proportional to 19,758.71, 27,267.03 and 10,807.05 is: 14,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,758.71 : 27,267.03 = 10,807.05 : x
  2. Step 2: Convert to fraction form
    19,758.71/27,267.03 = 10,807.05/x
  3. Step 3: Cross multiply
    19,758.71x = 27,267.03 × 10,807.05
  4. Step 4: Simplify right side
    19,758.71x = 294,676,028.75
  5. Step 5: Solve for x
    x = 294,676,028.75/19,758.71
  6. Step 6: Final answer
    x = 14,913.73

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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.