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Finding the Fourth Proportional to 8,770.74, 13,155.48 and 3,576.48

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Solution

The fourth proportional to 8,770.74, 13,155.48 and 3,576.48 is: 5,364.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.74 : 13,155.48 = 3,576.48 : x
  2. Step 2: Convert to fraction form
    8,770.74/13,155.48 = 3,576.48/x
  3. Step 3: Cross multiply
    8,770.74x = 13,155.48 × 3,576.48
  4. Step 4: Simplify right side
    8,770.74x = 47,050,311.11
  5. Step 5: Solve for x
    x = 47,050,311.11/8,770.74
  6. Step 6: Final answer
    x = 5,364.46

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.