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Finding the Fourth Proportional to 64,472.72, 88,970.88 and 35,790.64

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Solution

The fourth proportional to 64,472.72, 88,970.88 and 35,790.64 is: 49,390.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,472.72 : 88,970.88 = 35,790.64 : x
  2. Step 2: Convert to fraction form
    64,472.72/88,970.88 = 35,790.64/x
  3. Step 3: Cross multiply
    64,472.72x = 88,970.88 × 35,790.64
  4. Step 4: Simplify right side
    64,472.72x = 3,184,324,736.56
  5. Step 5: Solve for x
    x = 3,184,324,736.56/64,472.72
  6. Step 6: Final answer
    x = 49,390.27

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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.