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Finding the Fourth Proportional to 18,682.61, 28,033.65 and 7,597.49

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Solution

The fourth proportional to 18,682.61, 28,033.65 and 7,597.49 is: 11,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682.61 : 28,033.65 = 7,597.49 : x
  2. Step 2: Convert to fraction form
    18,682.61/28,033.65 = 7,597.49/x
  3. Step 3: Cross multiply
    18,682.61x = 28,033.65 × 7,597.49
  4. Step 4: Simplify right side
    18,682.61x = 212,985,235.37
  5. Step 5: Solve for x
    x = 212,985,235.37/18,682.61
  6. Step 6: Final answer
    x = 11,400.19

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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.