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Finding the Fourth Proportional to 64,938.64, 97,438.79 and 44,978.83

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Solution

The fourth proportional to 64,938.64, 97,438.79 and 44,978.83 is: 67,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,938.64 : 97,438.79 = 44,978.83 : x
  2. Step 2: Convert to fraction form
    64,938.64/97,438.79 = 44,978.83/x
  3. Step 3: Cross multiply
    64,938.64x = 97,438.79 × 44,978.83
  4. Step 4: Simplify right side
    64,938.64x = 4,382,682,770.82
  5. Step 5: Solve for x
    x = 4,382,682,770.82/64,938.64
  6. Step 6: Final answer
    x = 67,489.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.