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Finding the Fourth Proportional to 15,798.62, 21,799.51 and 9,337.36

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Solution

The fourth proportional to 15,798.62, 21,799.51 and 9,337.36 is: 12,884.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,798.62 : 21,799.51 = 9,337.36 : x
  2. Step 2: Convert to fraction form
    15,798.62/21,799.51 = 9,337.36/x
  3. Step 3: Cross multiply
    15,798.62x = 21,799.51 × 9,337.36
  4. Step 4: Simplify right side
    15,798.62x = 203,549,872.69
  5. Step 5: Solve for x
    x = 203,549,872.69/15,798.62
  6. Step 6: Final answer
    x = 12,884.03

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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.