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Finding the Fourth Proportional to 18,697.94, 28,051.46 and 6,217.91

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Solution

The fourth proportional to 18,697.94, 28,051.46 and 6,217.91 is: 9,328.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697.94 : 28,051.46 = 6,217.91 : x
  2. Step 2: Convert to fraction form
    18,697.94/28,051.46 = 6,217.91/x
  3. Step 3: Cross multiply
    18,697.94x = 28,051.46 × 6,217.91
  4. Step 4: Simplify right side
    18,697.94x = 174,421,603.58
  5. Step 5: Solve for x
    x = 174,421,603.58/18,697.94
  6. Step 6: Final answer
    x = 9,328.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.