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Finding the Fourth Proportional to 65,557.76, 90,468.90 and 37,261.62

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Solution

The fourth proportional to 65,557.76, 90,468.90 and 37,261.62 is: 51,420.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,557.76 : 90,468.90 = 37,261.62 : x
  2. Step 2: Convert to fraction form
    65,557.76/90,468.90 = 37,261.62/x
  3. Step 3: Cross multiply
    65,557.76x = 90,468.90 × 37,261.62
  4. Step 4: Simplify right side
    65,557.76x = 3,371,017,773.62
  5. Step 5: Solve for x
    x = 3,371,017,773.62/65,557.76
  6. Step 6: Final answer
    x = 51,420.58

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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.