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Finding the Fourth Proportional to 64,670.59, 89,243.97 and 35,989.45

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Solution

The fourth proportional to 64,670.59, 89,243.97 and 35,989.45 is: 49,664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,670.59 : 89,243.97 = 35,989.45 : x
  2. Step 2: Convert to fraction form
    64,670.59/89,243.97 = 35,989.45/x
  3. Step 3: Cross multiply
    64,670.59x = 89,243.97 × 35,989.45
  4. Step 4: Simplify right side
    64,670.59x = 3,211,841,396.12
  5. Step 5: Solve for x
    x = 3,211,841,396.12/64,670.59
  6. Step 6: Final answer
    x = 49,664.64

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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.