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Finding the Fourth Proportional to 10,782.08, 14,879.08 and 6,065.92

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Solution

The fourth proportional to 10,782.08, 14,879.08 and 6,065.92 is: 8,370.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782.08 : 14,879.08 = 6,065.92 : x
  2. Step 2: Convert to fraction form
    10,782.08/14,879.08 = 6,065.92/x
  3. Step 3: Cross multiply
    10,782.08x = 14,879.08 × 6,065.92
  4. Step 4: Simplify right side
    10,782.08x = 90,255,308.95
  5. Step 5: Solve for x
    x = 90,255,308.95/10,782.08
  6. Step 6: Final answer
    x = 8,370.86

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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.