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Finding the Fourth Proportional to 18,937.84, 26,101.56 and 14,213.92

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Solution

The fourth proportional to 18,937.84, 26,101.56 and 14,213.92 is: 19,590.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.84 : 26,101.56 = 14,213.92 : x
  2. Step 2: Convert to fraction form
    18,937.84/26,101.56 = 14,213.92/x
  3. Step 3: Cross multiply
    18,937.84x = 26,101.56 × 14,213.92
  4. Step 4: Simplify right side
    18,937.84x = 371,005,485.72
  5. Step 5: Solve for x
    x = 371,005,485.72/18,937.84
  6. Step 6: Final answer
    x = 19,590.70

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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.