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Finding the Fourth Proportional to 56,356.76, 77,747.45 and 33,684.39

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Solution

The fourth proportional to 56,356.76, 77,747.45 and 33,684.39 is: 46,469.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,356.76 : 77,747.45 = 33,684.39 : x
  2. Step 2: Convert to fraction form
    56,356.76/77,747.45 = 33,684.39/x
  3. Step 3: Cross multiply
    56,356.76x = 77,747.45 × 33,684.39
  4. Step 4: Simplify right side
    56,356.76x = 2,618,875,258.88
  5. Step 5: Solve for x
    x = 2,618,875,258.88/56,356.76
  6. Step 6: Final answer
    x = 46,469.58

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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.