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Finding the Fourth Proportional to 51,017.76, 70,393.59 and 29,787.39

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Solution

The fourth proportional to 51,017.76, 70,393.59 and 29,787.39 is: 41,100.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,017.76 : 70,393.59 = 29,787.39 : x
  2. Step 2: Convert to fraction form
    51,017.76/70,393.59 = 29,787.39/x
  3. Step 3: Cross multiply
    51,017.76x = 70,393.59 × 29,787.39
  4. Step 4: Simplify right side
    51,017.76x = 2,096,841,318.83
  5. Step 5: Solve for x
    x = 2,096,841,318.83/51,017.76
  6. Step 6: Final answer
    x = 41,100.22

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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.