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Finding the Fourth Proportional to 9,165.32, 12,636.36 and 7,484.96

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Solution

The fourth proportional to 9,165.32, 12,636.36 and 7,484.96 is: 10,319.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.32 : 12,636.36 = 7,484.96 : x
  2. Step 2: Convert to fraction form
    9,165.32/12,636.36 = 7,484.96/x
  3. Step 3: Cross multiply
    9,165.32x = 12,636.36 × 7,484.96
  4. Step 4: Simplify right side
    9,165.32x = 94,582,649.15
  5. Step 5: Solve for x
    x = 94,582,649.15/9,165.32
  6. Step 6: Final answer
    x = 10,319.62

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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.