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Finding the Fourth Proportional to 56,498.92, 77,997.54 and 39,806.44

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Solution

The fourth proportional to 56,498.92, 77,997.54 and 39,806.44 is: 54,953.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,498.92 : 77,997.54 = 39,806.44 : x
  2. Step 2: Convert to fraction form
    56,498.92/77,997.54 = 39,806.44/x
  3. Step 3: Cross multiply
    56,498.92x = 77,997.54 × 39,806.44
  4. Step 4: Simplify right side
    56,498.92x = 3,104,804,396.16
  5. Step 5: Solve for x
    x = 3,104,804,396.16/56,498.92
  6. Step 6: Final answer
    x = 54,953.34

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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.