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Finding the Fourth Proportional to 9,815.12, 14,716.83 and 6,656.44

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Solution

The fourth proportional to 9,815.12, 14,716.83 and 6,656.44 is: 9,980.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.12 : 14,716.83 = 6,656.44 : x
  2. Step 2: Convert to fraction form
    9,815.12/14,716.83 = 6,656.44/x
  3. Step 3: Cross multiply
    9,815.12x = 14,716.83 × 6,656.44
  4. Step 4: Simplify right side
    9,815.12x = 97,961,695.89
  5. Step 5: Solve for x
    x = 97,961,695.89/9,815.12
  6. Step 6: Final answer
    x = 9,980.69

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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.