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Finding the Fourth Proportional to 64,561.68, 89,059.16 and 59,994.97

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Solution

The fourth proportional to 64,561.68, 89,059.16 and 59,994.97 is: 82,759.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,561.68 : 89,059.16 = 59,994.97 : x
  2. Step 2: Convert to fraction form
    64,561.68/89,059.16 = 59,994.97/x
  3. Step 3: Cross multiply
    64,561.68x = 89,059.16 × 59,994.97
  4. Step 4: Simplify right side
    64,561.68x = 5,343,101,559.76
  5. Step 5: Solve for x
    x = 5,343,101,559.76/64,561.68
  6. Step 6: Final answer
    x = 82,759.64

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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.