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Finding the Fourth Proportional to 31,064.40, 46,598.40 and 8,879.40

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Solution

The fourth proportional to 31,064.40, 46,598.40 and 8,879.40 is: 13,319.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,064.40 : 46,598.40 = 8,879.40 : x
  2. Step 2: Convert to fraction form
    31,064.40/46,598.40 = 8,879.40/x
  3. Step 3: Cross multiply
    31,064.40x = 46,598.40 × 8,879.40
  4. Step 4: Simplify right side
    31,064.40x = 413,765,832.96
  5. Step 5: Solve for x
    x = 413,765,832.96/31,064.40
  6. Step 6: Final answer
    x = 13,319.61

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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.