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Finding the Fourth Proportional to 18,917.52, 26,062.68 and 14,937.16

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Solution

The fourth proportional to 18,917.52, 26,062.68 and 14,937.16 is: 20,578.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917.52 : 26,062.68 = 14,937.16 : x
  2. Step 2: Convert to fraction form
    18,917.52/26,062.68 = 14,937.16/x
  3. Step 3: Cross multiply
    18,917.52x = 26,062.68 × 14,937.16
  4. Step 4: Simplify right side
    18,917.52x = 389,302,421.19
  5. Step 5: Solve for x
    x = 389,302,421.19/18,917.52
  6. Step 6: Final answer
    x = 20,578.94

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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.