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Finding the Fourth Proportional to 15,483.24, 21,366.86 and 8,768.86

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Solution

The fourth proportional to 15,483.24, 21,366.86 and 8,768.86 is: 12,101.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,483.24 : 21,366.86 = 8,768.86 : x
  2. Step 2: Convert to fraction form
    15,483.24/21,366.86 = 8,768.86/x
  3. Step 3: Cross multiply
    15,483.24x = 21,366.86 × 8,768.86
  4. Step 4: Simplify right side
    15,483.24x = 187,363,003.98
  5. Step 5: Solve for x
    x = 187,363,003.98/15,483.24
  6. Step 6: Final answer
    x = 12,101.02

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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.