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Finding the Fourth Proportional to 9,660.04, 13,336.74 and 9,064.36

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Solution

The fourth proportional to 9,660.04, 13,336.74 and 9,064.36 is: 12,514.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.04 : 13,336.74 = 9,064.36 : x
  2. Step 2: Convert to fraction form
    9,660.04/13,336.74 = 9,064.36/x
  3. Step 3: Cross multiply
    9,660.04x = 13,336.74 × 9,064.36
  4. Step 4: Simplify right side
    9,660.04x = 120,889,012.59
  5. Step 5: Solve for x
    x = 120,889,012.59/9,660.04
  6. Step 6: Final answer
    x = 12,514.34

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Half scale
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Double scale
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Similar ratio
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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.