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Finding the Fourth Proportional to 7,365.87, 10,164.70 and 4,008.61

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Solution

The fourth proportional to 7,365.87, 10,164.70 and 4,008.61 is: 5,531.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,365.87 : 10,164.70 = 4,008.61 : x
  2. Step 2: Convert to fraction form
    7,365.87/10,164.70 = 4,008.61/x
  3. Step 3: Cross multiply
    7,365.87x = 10,164.70 × 4,008.61
  4. Step 4: Simplify right side
    7,365.87x = 40,746,282.63
  5. Step 5: Solve for x
    x = 40,746,282.63/7,365.87
  6. Step 6: Final answer
    x = 5,531.77

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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.