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Finding the Fourth Proportional to 9,616.48, 13,270.48 and 5,425.12

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Solution

The fourth proportional to 9,616.48, 13,270.48 and 5,425.12 is: 7,486.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,616.48 : 13,270.48 = 5,425.12 : x
  2. Step 2: Convert to fraction form
    9,616.48/13,270.48 = 5,425.12/x
  3. Step 3: Cross multiply
    9,616.48x = 13,270.48 × 5,425.12
  4. Step 4: Simplify right side
    9,616.48x = 71,993,946.46
  5. Step 5: Solve for x
    x = 71,993,946.46/9,616.48
  6. Step 6: Final answer
    x = 7,486.52

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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.