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Finding the Fourth Proportional to 64,611.60, 89,150.93 and 37,748.91

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Solution

The fourth proportional to 64,611.60, 89,150.93 and 37,748.91 is: 52,085.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,611.60 : 89,150.93 = 37,748.91 : x
  2. Step 2: Convert to fraction form
    64,611.60/89,150.93 = 37,748.91/x
  3. Step 3: Cross multiply
    64,611.60x = 89,150.93 × 37,748.91
  4. Step 4: Simplify right side
    64,611.60x = 3,365,350,720.12
  5. Step 5: Solve for x
    x = 3,365,350,720.12/64,611.60
  6. Step 6: Final answer
    x = 52,085.86

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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.