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Finding the Fourth Proportional to 15,059.61, 20,791.94 and 9,684.35

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Solution

The fourth proportional to 15,059.61, 20,791.94 and 9,684.35 is: 13,370.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,059.61 : 20,791.94 = 9,684.35 : x
  2. Step 2: Convert to fraction form
    15,059.61/20,791.94 = 9,684.35/x
  3. Step 3: Cross multiply
    15,059.61x = 20,791.94 × 9,684.35
  4. Step 4: Simplify right side
    15,059.61x = 201,356,271.76
  5. Step 5: Solve for x
    x = 201,356,271.76/15,059.61
  6. Step 6: Final answer
    x = 13,370.62

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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.