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Finding the Fourth Proportional to 18,797.52, 28,209.04 and 10,038.72

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Solution

The fourth proportional to 18,797.52, 28,209.04 and 10,038.72 is: 15,064.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.52 : 28,209.04 = 10,038.72 : x
  2. Step 2: Convert to fraction form
    18,797.52/28,209.04 = 10,038.72/x
  3. Step 3: Cross multiply
    18,797.52x = 28,209.04 × 10,038.72
  4. Step 4: Simplify right side
    18,797.52x = 283,182,654.03
  5. Step 5: Solve for x
    x = 283,182,654.03/18,797.52
  6. Step 6: Final answer
    x = 15,064.89

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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.