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Finding the Fourth Proportional to 64,771.58, 97,091.73 and 31,463.57

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Solution

The fourth proportional to 64,771.58, 97,091.73 and 31,463.57 is: 47,163.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,771.58 : 97,091.73 = 31,463.57 : x
  2. Step 2: Convert to fraction form
    64,771.58/97,091.73 = 31,463.57/x
  3. Step 3: Cross multiply
    64,771.58x = 97,091.73 × 31,463.57
  4. Step 4: Simplify right side
    64,771.58x = 3,054,852,443.28
  5. Step 5: Solve for x
    x = 3,054,852,443.28/64,771.58
  6. Step 6: Final answer
    x = 47,163.47

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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.