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Finding the Fourth Proportional to 18,924.51, 26,102.84 and 10,966.87

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Solution

The fourth proportional to 18,924.51, 26,102.84 and 10,966.87 is: 15,126.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924.51 : 26,102.84 = 10,966.87 : x
  2. Step 2: Convert to fraction form
    18,924.51/26,102.84 = 10,966.87/x
  3. Step 3: Cross multiply
    18,924.51x = 26,102.84 × 10,966.87
  4. Step 4: Simplify right side
    18,924.51x = 286,266,492.39
  5. Step 5: Solve for x
    x = 286,266,492.39/18,924.51
  6. Step 6: Final answer
    x = 15,126.76

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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.