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Finding the Fourth Proportional to 13,775.13, 19,009.76 and 8,110.13

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Solution

The fourth proportional to 13,775.13, 19,009.76 and 8,110.13 is: 11,192.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.13 : 19,009.76 = 8,110.13 : x
  2. Step 2: Convert to fraction form
    13,775.13/19,009.76 = 8,110.13/x
  3. Step 3: Cross multiply
    13,775.13x = 19,009.76 × 8,110.13
  4. Step 4: Simplify right side
    13,775.13x = 154,171,489.27
  5. Step 5: Solve for x
    x = 154,171,489.27/13,775.13
  6. Step 6: Final answer
    x = 11,192.02

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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.