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Finding the Fourth Proportional to 19,357.92, 29,036.88 and 13,525.92

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Solution

The fourth proportional to 19,357.92, 29,036.88 and 13,525.92 is: 20,288.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,357.92 : 29,036.88 = 13,525.92 : x
  2. Step 2: Convert to fraction form
    19,357.92/29,036.88 = 13,525.92/x
  3. Step 3: Cross multiply
    19,357.92x = 29,036.88 × 13,525.92
  4. Step 4: Simplify right side
    19,357.92x = 392,750,515.93
  5. Step 5: Solve for x
    x = 392,750,515.93/19,357.92
  6. Step 6: Final answer
    x = 20,288.88

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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.