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Finding the Fourth Proportional to 7,602.56, 10,491.20 and 4,245.76

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Solution

The fourth proportional to 7,602.56, 10,491.20 and 4,245.76 is: 5,858.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,602.56 : 10,491.20 = 4,245.76 : x
  2. Step 2: Convert to fraction form
    7,602.56/10,491.20 = 4,245.76/x
  3. Step 3: Cross multiply
    7,602.56x = 10,491.20 × 4,245.76
  4. Step 4: Simplify right side
    7,602.56x = 44,543,117.31
  5. Step 5: Solve for x
    x = 44,543,117.31/7,602.56
  6. Step 6: Final answer
    x = 5,858.96

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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.