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Finding the Fourth Proportional to 65,915.93, 90,962.03 and 37,236.93

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Solution

The fourth proportional to 65,915.93, 90,962.03 and 37,236.93 is: 51,385.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,915.93 : 90,962.03 = 37,236.93 : x
  2. Step 2: Convert to fraction form
    65,915.93/90,962.03 = 37,236.93/x
  3. Step 3: Cross multiply
    65,915.93x = 90,962.03 × 37,236.93
  4. Step 4: Simplify right side
    65,915.93x = 3,387,146,557.58
  5. Step 5: Solve for x
    x = 3,387,146,557.58/65,915.93
  6. Step 6: Final answer
    x = 51,385.86

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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.