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Finding the Fourth Proportional to 7,895.15, 11,813.52 and 6,495.47

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Solution

The fourth proportional to 7,895.15, 11,813.52 and 6,495.47 is: 9,719.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,895.15 : 11,813.52 = 6,495.47 : x
  2. Step 2: Convert to fraction form
    7,895.15/11,813.52 = 6,495.47/x
  3. Step 3: Cross multiply
    7,895.15x = 11,813.52 × 6,495.47
  4. Step 4: Simplify right side
    7,895.15x = 76,734,364.75
  5. Step 5: Solve for x
    x = 76,734,364.75/7,895.15
  6. Step 6: Final answer
    x = 9,719.18

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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.