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Finding the Fourth Proportional to 85,093.47, 127,623.73 and 32,490.45

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Solution

The fourth proportional to 85,093.47, 127,623.73 and 32,490.45 is: 48,729.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,093.47 : 127,623.73 = 32,490.45 : x
  2. Step 2: Convert to fraction form
    85,093.47/127,623.73 = 32,490.45/x
  3. Step 3: Cross multiply
    85,093.47x = 127,623.73 × 32,490.45
  4. Step 4: Simplify right side
    85,093.47x = 4,146,552,418.38
  5. Step 5: Solve for x
    x = 4,146,552,418.38/85,093.47
  6. Step 6: Final answer
    x = 48,729.38

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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.