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Finding the Fourth Proportional to 86,695.72, 119,639.46 and 46,951.72

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Solution

The fourth proportional to 86,695.72, 119,639.46 and 46,951.72 is: 64,793.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,695.72 : 119,639.46 = 46,951.72 : x
  2. Step 2: Convert to fraction form
    86,695.72/119,639.46 = 46,951.72/x
  3. Step 3: Cross multiply
    86,695.72x = 119,639.46 × 46,951.72
  4. Step 4: Simplify right side
    86,695.72x = 5,617,278,426.87
  5. Step 5: Solve for x
    x = 5,617,278,426.87/86,695.72
  6. Step 6: Final answer
    x = 64,793.03

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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.