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Finding the Fourth Proportional to 18,891.84, 26,038.08 and 14,167.92

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Solution

The fourth proportional to 18,891.84, 26,038.08 and 14,167.92 is: 19,527.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,891.84 : 26,038.08 = 14,167.92 : x
  2. Step 2: Convert to fraction form
    18,891.84/26,038.08 = 14,167.92/x
  3. Step 3: Cross multiply
    18,891.84x = 26,038.08 × 14,167.92
  4. Step 4: Simplify right side
    18,891.84x = 368,905,434.39
  5. Step 5: Solve for x
    x = 368,905,434.39/18,891.84
  6. Step 6: Final answer
    x = 19,527.24

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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.