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Finding the Fourth Proportional to 18,232.61, 27,348.93 and 5,085.32

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Solution

The fourth proportional to 18,232.61, 27,348.93 and 5,085.32 is: 7,627.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,232.61 : 27,348.93 = 5,085.32 : x
  2. Step 2: Convert to fraction form
    18,232.61/27,348.93 = 5,085.32/x
  3. Step 3: Cross multiply
    18,232.61x = 27,348.93 × 5,085.32
  4. Step 4: Simplify right side
    18,232.61x = 139,077,923.96
  5. Step 5: Solve for x
    x = 139,077,923.96/18,232.61
  6. Step 6: Final answer
    x = 7,627.98

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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.