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Finding the Fourth Proportional to 56,963.84, 78,598.07 and 33,078.15

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Solution

The fourth proportional to 56,963.84, 78,598.07 and 33,078.15 is: 45,640.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,963.84 : 78,598.07 = 33,078.15 : x
  2. Step 2: Convert to fraction form
    56,963.84/78,598.07 = 33,078.15/x
  3. Step 3: Cross multiply
    56,963.84x = 78,598.07 × 33,078.15
  4. Step 4: Simplify right side
    56,963.84x = 2,599,878,749.17
  5. Step 5: Solve for x
    x = 2,599,878,749.17/56,963.84
  6. Step 6: Final answer
    x = 45,640.86

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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.