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Finding the Fourth Proportional to 19,775.71, 27,290.01 and 10,823.20

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Solution

The fourth proportional to 19,775.71, 27,290.01 and 10,823.20 is: 14,935.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,775.71 : 27,290.01 = 10,823.20 : x
  2. Step 2: Convert to fraction form
    19,775.71/27,290.01 = 10,823.20/x
  3. Step 3: Cross multiply
    19,775.71x = 27,290.01 × 10,823.20
  4. Step 4: Simplify right side
    19,775.71x = 295,365,236.23
  5. Step 5: Solve for x
    x = 295,365,236.23/19,775.71
  6. Step 6: Final answer
    x = 14,935.76

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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.