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Finding the Fourth Proportional to 9,668.56, 13,329.92 and 6,977.52

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Solution

The fourth proportional to 9,668.56, 13,329.92 and 6,977.52 is: 9,619.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,668.56 : 13,329.92 = 6,977.52 : x
  2. Step 2: Convert to fraction form
    9,668.56/13,329.92 = 6,977.52/x
  3. Step 3: Cross multiply
    9,668.56x = 13,329.92 × 6,977.52
  4. Step 4: Simplify right side
    9,668.56x = 93,009,783.40
  5. Step 5: Solve for x
    x = 93,009,783.40/9,668.56
  6. Step 6: Final answer
    x = 9,619.82

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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.