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Finding the Fourth Proportional to 9,672.66, 13,340.75 and 6,484.91

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Solution

The fourth proportional to 9,672.66, 13,340.75 and 6,484.91 is: 8,944.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,672.66 : 13,340.75 = 6,484.91 : x
  2. Step 2: Convert to fraction form
    9,672.66/13,340.75 = 6,484.91/x
  3. Step 3: Cross multiply
    9,672.66x = 13,340.75 × 6,484.91
  4. Step 4: Simplify right side
    9,672.66x = 86,513,463.95
  5. Step 5: Solve for x
    x = 86,513,463.95/9,672.66
  6. Step 6: Final answer
    x = 8,944.12

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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.