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Finding the Fourth Proportional to 9,761.53, 13,458.19 and 6,223.45

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Solution

The fourth proportional to 9,761.53, 13,458.19 and 6,223.45 is: 8,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,761.53 : 13,458.19 = 6,223.45 : x
  2. Step 2: Convert to fraction form
    9,761.53/13,458.19 = 6,223.45/x
  3. Step 3: Cross multiply
    9,761.53x = 13,458.19 × 6,223.45
  4. Step 4: Simplify right side
    9,761.53x = 83,756,372.56
  5. Step 5: Solve for x
    x = 83,756,372.56/9,761.53
  6. Step 6: Final answer
    x = 8,580.25

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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.