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Finding the Fourth Proportional to 61,649.53, 85,076.39 and 42,797.59

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Solution

The fourth proportional to 61,649.53, 85,076.39 and 42,797.59 is: 59,060.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,649.53 : 85,076.39 = 42,797.59 : x
  2. Step 2: Convert to fraction form
    61,649.53/85,076.39 = 42,797.59/x
  3. Step 3: Cross multiply
    61,649.53x = 85,076.39 × 42,797.59
  4. Step 4: Simplify right side
    61,649.53x = 3,641,064,457.90
  5. Step 5: Solve for x
    x = 3,641,064,457.90/61,649.53
  6. Step 6: Final answer
    x = 59,060.70

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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.