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Finding the Fourth Proportional to 7,256.81, 10,798.30 and 7,232.21

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Solution

The fourth proportional to 7,256.81, 10,798.30 and 7,232.21 is: 10,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,256.81 : 10,798.30 = 7,232.21 : x
  2. Step 2: Convert to fraction form
    7,256.81/10,798.30 = 7,232.21/x
  3. Step 3: Cross multiply
    7,256.81x = 10,798.30 × 7,232.21
  4. Step 4: Simplify right side
    7,256.81x = 78,095,573.24
  5. Step 5: Solve for x
    x = 78,095,573.24/7,256.81
  6. Step 6: Final answer
    x = 10,761.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.