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Finding the Fourth Proportional to 15,060.83, 20,783.92 and 9,092.51

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Solution

The fourth proportional to 15,060.83, 20,783.92 and 9,092.51 is: 12,547.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.83 : 20,783.92 = 9,092.51 : x
  2. Step 2: Convert to fraction form
    15,060.83/20,783.92 = 9,092.51/x
  3. Step 3: Cross multiply
    15,060.83x = 20,783.92 × 9,092.51
  4. Step 4: Simplify right side
    15,060.83x = 188,978,000.44
  5. Step 5: Solve for x
    x = 188,978,000.44/15,060.83
  6. Step 6: Final answer
    x = 12,547.65

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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.