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Finding the Fourth Proportional to 8,693.32, 11,995.38 and 4,916.36

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Solution

The fourth proportional to 8,693.32, 11,995.38 and 4,916.36 is: 6,783.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.32 : 11,995.38 = 4,916.36 : x
  2. Step 2: Convert to fraction form
    8,693.32/11,995.38 = 4,916.36/x
  3. Step 3: Cross multiply
    8,693.32x = 11,995.38 × 4,916.36
  4. Step 4: Simplify right side
    8,693.32x = 58,973,606.42
  5. Step 5: Solve for x
    x = 58,973,606.42/8,693.32
  6. Step 6: Final answer
    x = 6,783.78

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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.