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Finding the Fourth Proportional to 11,467.58, 15,803.84 and 8,945.70

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Solution

The fourth proportional to 11,467.58, 15,803.84 and 8,945.70 is: 12,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,467.58 : 15,803.84 = 8,945.70 : x
  2. Step 2: Convert to fraction form
    11,467.58/15,803.84 = 8,945.70/x
  3. Step 3: Cross multiply
    11,467.58x = 15,803.84 × 8,945.70
  4. Step 4: Simplify right side
    11,467.58x = 141,376,366.76
  5. Step 5: Solve for x
    x = 141,376,366.76/11,467.58
  6. Step 6: Final answer
    x = 12,328.36

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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.