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Finding the Fourth Proportional to 9,294.66, 12,827.64 and 5,518.75

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Solution

The fourth proportional to 9,294.66, 12,827.64 and 5,518.75 is: 7,616.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,294.66 : 12,827.64 = 5,518.75 : x
  2. Step 2: Convert to fraction form
    9,294.66/12,827.64 = 5,518.75/x
  3. Step 3: Cross multiply
    9,294.66x = 12,827.64 × 5,518.75
  4. Step 4: Simplify right side
    9,294.66x = 70,792,538.25
  5. Step 5: Solve for x
    x = 70,792,538.25/9,294.66
  6. Step 6: Final answer
    x = 7,616.47

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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.