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Finding the Fourth Proportional to 11,083.64, 15,283.02 and 9,060.74

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Solution

The fourth proportional to 11,083.64, 15,283.02 and 9,060.74 is: 12,493.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,083.64 : 15,283.02 = 9,060.74 : x
  2. Step 2: Convert to fraction form
    11,083.64/15,283.02 = 9,060.74/x
  3. Step 3: Cross multiply
    11,083.64x = 15,283.02 × 9,060.74
  4. Step 4: Simplify right side
    11,083.64x = 138,475,470.63
  5. Step 5: Solve for x
    x = 138,475,470.63/11,083.64
  6. Step 6: Final answer
    x = 12,493.68

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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.