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Finding the Fourth Proportional to 19,197.52, 28,796.30 and 12,652.93

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Solution

The fourth proportional to 19,197.52, 28,796.30 and 12,652.93 is: 18,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,197.52 : 28,796.30 = 12,652.93 : x
  2. Step 2: Convert to fraction form
    19,197.52/28,796.30 = 12,652.93/x
  3. Step 3: Cross multiply
    19,197.52x = 28,796.30 × 12,652.93
  4. Step 4: Simplify right side
    19,197.52x = 364,357,568.16
  5. Step 5: Solve for x
    x = 364,357,568.16/19,197.52
  6. Step 6: Final answer
    x = 18,979.41

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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.