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Finding the Fourth Proportional to 18,877.12, 26,052 and 10,494.40

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Solution

The fourth proportional to 18,877.12, 26,052 and 10,494.40 is: 14,483.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.12 : 26,052 = 10,494.40 : x
  2. Step 2: Convert to fraction form
    18,877.12/26,052 = 10,494.40/x
  3. Step 3: Cross multiply
    18,877.12x = 26,052 × 10,494.40
  4. Step 4: Simplify right side
    18,877.12x = 273,400,108.80
  5. Step 5: Solve for x
    x = 273,400,108.80/18,877.12
  6. Step 6: Final answer
    x = 14,483.15

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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.