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Finding the Fourth Proportional to 64,611.84, 89,169.60 and 37,397.12

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Solution

The fourth proportional to 64,611.84, 89,169.60 and 37,397.12 is: 51,611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,611.84 : 89,169.60 = 37,397.12 : x
  2. Step 2: Convert to fraction form
    64,611.84/89,169.60 = 37,397.12/x
  3. Step 3: Cross multiply
    64,611.84x = 89,169.60 × 37,397.12
  4. Step 4: Simplify right side
    64,611.84x = 3,334,686,231.55
  5. Step 5: Solve for x
    x = 3,334,686,231.55/64,611.84
  6. Step 6: Final answer
    x = 51,611.07

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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.