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Finding the Fourth Proportional to 15,609.93, 21,541.73 and 8,804.04

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Solution

The fourth proportional to 15,609.93, 21,541.73 and 8,804.04 is: 12,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,609.93 : 21,541.73 = 8,804.04 : x
  2. Step 2: Convert to fraction form
    15,609.93/21,541.73 = 8,804.04/x
  3. Step 3: Cross multiply
    15,609.93x = 21,541.73 × 8,804.04
  4. Step 4: Simplify right side
    15,609.93x = 189,654,208.57
  5. Step 5: Solve for x
    x = 189,654,208.57/15,609.93
  6. Step 6: Final answer
    x = 12,149.59

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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.