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Finding the Fourth Proportional to 19,503.21, 26,917.61 and 14,500.65

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Solution

The fourth proportional to 19,503.21, 26,917.61 and 14,500.65 is: 20,013.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,503.21 : 26,917.61 = 14,500.65 : x
  2. Step 2: Convert to fraction form
    19,503.21/26,917.61 = 14,500.65/x
  3. Step 3: Cross multiply
    19,503.21x = 26,917.61 × 14,500.65
  4. Step 4: Simplify right side
    19,503.21x = 390,322,768.94
  5. Step 5: Solve for x
    x = 390,322,768.94/19,503.21
  6. Step 6: Final answer
    x = 20,013.26

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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.