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Finding the Fourth Proportional to 7,365.69, 10,164.69 and 4,008.51

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Solution

The fourth proportional to 7,365.69, 10,164.69 and 4,008.51 is: 5,531.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,365.69 : 10,164.69 = 4,008.51 : x
  2. Step 2: Convert to fraction form
    7,365.69/10,164.69 = 4,008.51/x
  3. Step 3: Cross multiply
    7,365.69x = 10,164.69 × 4,008.51
  4. Step 4: Simplify right side
    7,365.69x = 40,745,261.51
  5. Step 5: Solve for x
    x = 40,745,261.51/7,365.69
  6. Step 6: Final answer
    x = 5,531.76

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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.