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Finding the Fourth Proportional to 13,756.37, 18,984.01 and 7,468.74

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Solution

The fourth proportional to 13,756.37, 18,984.01 and 7,468.74 is: 10,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.37 : 18,984.01 = 7,468.74 : x
  2. Step 2: Convert to fraction form
    13,756.37/18,984.01 = 7,468.74/x
  3. Step 3: Cross multiply
    13,756.37x = 18,984.01 × 7,468.74
  4. Step 4: Simplify right side
    13,756.37x = 141,786,634.85
  5. Step 5: Solve for x
    x = 141,786,634.85/13,756.37
  6. Step 6: Final answer
    x = 10,306.98

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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.