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Finding the Fourth Proportional to 7,616.94, 10,488.01 and 6,667.42

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Solution

The fourth proportional to 7,616.94, 10,488.01 and 6,667.42 is: 9,180.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,616.94 : 10,488.01 = 6,667.42 : x
  2. Step 2: Convert to fraction form
    7,616.94/10,488.01 = 6,667.42/x
  3. Step 3: Cross multiply
    7,616.94x = 10,488.01 × 6,667.42
  4. Step 4: Simplify right side
    7,616.94x = 69,927,881.86
  5. Step 5: Solve for x
    x = 69,927,881.86/7,616.94
  6. Step 6: Final answer
    x = 9,180.58

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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.