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Finding the Fourth Proportional to 64,986.80, 97,512.60 and 36,928.40

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Solution

The fourth proportional to 64,986.80, 97,512.60 and 36,928.40 is: 55,411.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,986.80 : 97,512.60 = 36,928.40 : x
  2. Step 2: Convert to fraction form
    64,986.80/97,512.60 = 36,928.40/x
  3. Step 3: Cross multiply
    64,986.80x = 97,512.60 × 36,928.40
  4. Step 4: Simplify right side
    64,986.80x = 3,600,984,297.84
  5. Step 5: Solve for x
    x = 3,600,984,297.84/64,986.80
  6. Step 6: Final answer
    x = 55,411.01

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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.