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Finding the Fourth Proportional to 7,667.80, 10,587.52 and 6,182.80

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Solution

The fourth proportional to 7,667.80, 10,587.52 and 6,182.80 is: 8,537.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,667.80 : 10,587.52 = 6,182.80 : x
  2. Step 2: Convert to fraction form
    7,667.80/10,587.52 = 6,182.80/x
  3. Step 3: Cross multiply
    7,667.80x = 10,587.52 × 6,182.80
  4. Step 4: Simplify right side
    7,667.80x = 65,460,518.66
  5. Step 5: Solve for x
    x = 65,460,518.66/7,667.80
  6. Step 6: Final answer
    x = 8,537.07

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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.