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Finding the Fourth Proportional to 8,695.76, 12,000.16 and 4,716.86

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Solution

The fourth proportional to 8,695.76, 12,000.16 and 4,716.86 is: 6,509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.76 : 12,000.16 = 4,716.86 : x
  2. Step 2: Convert to fraction form
    8,695.76/12,000.16 = 4,716.86/x
  3. Step 3: Cross multiply
    8,695.76x = 12,000.16 × 4,716.86
  4. Step 4: Simplify right side
    8,695.76x = 56,603,074.70
  5. Step 5: Solve for x
    x = 56,603,074.70/8,695.76
  6. Step 6: Final answer
    x = 6,509.27

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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.