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Finding the Fourth Proportional to 11,460.74, 15,815.37 and 6,492.74

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Solution

The fourth proportional to 11,460.74, 15,815.37 and 6,492.74 is: 8,959.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,460.74 : 15,815.37 = 6,492.74 : x
  2. Step 2: Convert to fraction form
    11,460.74/15,815.37 = 6,492.74/x
  3. Step 3: Cross multiply
    11,460.74x = 15,815.37 × 6,492.74
  4. Step 4: Simplify right side
    11,460.74x = 102,685,085.41
  5. Step 5: Solve for x
    x = 102,685,085.41/11,460.74
  6. Step 6: Final answer
    x = 8,959.73

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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.