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Finding the Fourth Proportional to 7,703.69, 10,631.10 and 4,166.89

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Solution

The fourth proportional to 7,703.69, 10,631.10 and 4,166.89 is: 5,750.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,703.69 : 10,631.10 = 4,166.89 : x
  2. Step 2: Convert to fraction form
    7,703.69/10,631.10 = 4,166.89/x
  3. Step 3: Cross multiply
    7,703.69x = 10,631.10 × 4,166.89
  4. Step 4: Simplify right side
    7,703.69x = 44,298,649.69
  5. Step 5: Solve for x
    x = 44,298,649.69/7,703.69
  6. Step 6: Final answer
    x = 5,750.32

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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.