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Finding the Fourth Proportional to 10,051.70, 15,077.55 and 5,443.70

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Solution

The fourth proportional to 10,051.70, 15,077.55 and 5,443.70 is: 8,165.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,051.70 : 15,077.55 = 5,443.70 : x
  2. Step 2: Convert to fraction form
    10,051.70/15,077.55 = 5,443.70/x
  3. Step 3: Cross multiply
    10,051.70x = 15,077.55 × 5,443.70
  4. Step 4: Simplify right side
    10,051.70x = 82,077,658.94
  5. Step 5: Solve for x
    x = 82,077,658.94/10,051.70
  6. Step 6: Final answer
    x = 8,165.55

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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.