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Finding the Fourth Proportional to 9,039.28, 13,498.76 and 8,941.54

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Solution

The fourth proportional to 9,039.28, 13,498.76 and 8,941.54 is: 13,352.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,039.28 : 13,498.76 = 8,941.54 : x
  2. Step 2: Convert to fraction form
    9,039.28/13,498.76 = 8,941.54/x
  3. Step 3: Cross multiply
    9,039.28x = 13,498.76 × 8,941.54
  4. Step 4: Simplify right side
    9,039.28x = 120,699,702.49
  5. Step 5: Solve for x
    x = 120,699,702.49/9,039.28
  6. Step 6: Final answer
    x = 13,352.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.