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Finding the Fourth Proportional to 9,759.76, 13,468.50 and 5,283.56

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Solution

The fourth proportional to 9,759.76, 13,468.50 and 5,283.56 is: 7,291.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,759.76 : 13,468.50 = 5,283.56 : x
  2. Step 2: Convert to fraction form
    9,759.76/13,468.50 = 5,283.56/x
  3. Step 3: Cross multiply
    9,759.76x = 13,468.50 × 5,283.56
  4. Step 4: Simplify right side
    9,759.76x = 71,161,661.53
  5. Step 5: Solve for x
    x = 71,161,661.53/9,759.76
  6. Step 6: Final answer
    x = 7,291.34

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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.