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Finding the Fourth Proportional to 9,782.32, 14,688.06 and 6,866.32

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Solution

The fourth proportional to 9,782.32, 14,688.06 and 6,866.32 is: 10,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,782.32 : 14,688.06 = 6,866.32 : x
  2. Step 2: Convert to fraction form
    9,782.32/14,688.06 = 6,866.32/x
  3. Step 3: Cross multiply
    9,782.32x = 14,688.06 × 6,866.32
  4. Step 4: Simplify right side
    9,782.32x = 100,852,920.14
  5. Step 5: Solve for x
    x = 100,852,920.14/9,782.32
  6. Step 6: Final answer
    x = 10,309.71

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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.