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Finding the Fourth Proportional to 9,477.64, 13,079.73 and 5,445.73

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Solution

The fourth proportional to 9,477.64, 13,079.73 and 5,445.73 is: 7,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,477.64 : 13,079.73 = 5,445.73 : x
  2. Step 2: Convert to fraction form
    9,477.64/13,079.73 = 5,445.73/x
  3. Step 3: Cross multiply
    9,477.64x = 13,079.73 × 5,445.73
  4. Step 4: Simplify right side
    9,477.64x = 71,228,678.05
  5. Step 5: Solve for x
    x = 71,228,678.05/9,477.64
  6. Step 6: Final answer
    x = 7,515.44

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Half scale
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Double scale
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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.