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Finding the Fourth Proportional to 7,299.64, 10,076.76 and 4,650.64

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Solution

The fourth proportional to 7,299.64, 10,076.76 and 4,650.64 is: 6,419.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,299.64 : 10,076.76 = 4,650.64 : x
  2. Step 2: Convert to fraction form
    7,299.64/10,076.76 = 4,650.64/x
  3. Step 3: Cross multiply
    7,299.64x = 10,076.76 × 4,650.64
  4. Step 4: Simplify right side
    7,299.64x = 46,863,383.13
  5. Step 5: Solve for x
    x = 46,863,383.13/7,299.64
  6. Step 6: Final answer
    x = 6,419.96

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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.