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Finding the Fourth Proportional to 72,464.82, 100,009.78 and 48,264.44

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Solution

The fourth proportional to 72,464.82, 100,009.78 and 48,264.44 is: 66,610.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,464.82 : 100,009.78 = 48,264.44 : x
  2. Step 2: Convert to fraction form
    72,464.82/100,009.78 = 48,264.44/x
  3. Step 3: Cross multiply
    72,464.82x = 100,009.78 × 48,264.44
  4. Step 4: Simplify right side
    72,464.82x = 4,826,916,026.22
  5. Step 5: Solve for x
    x = 4,826,916,026.22/72,464.82
  6. Step 6: Final answer
    x = 66,610.47

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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.