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Finding the Fourth Proportional to 7,667.58, 11,495.08 and 3,970.86

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Solution

The fourth proportional to 7,667.58, 11,495.08 and 3,970.86 is: 5,953.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,667.58 : 11,495.08 = 3,970.86 : x
  2. Step 2: Convert to fraction form
    7,667.58/11,495.08 = 3,970.86/x
  3. Step 3: Cross multiply
    7,667.58x = 11,495.08 × 3,970.86
  4. Step 4: Simplify right side
    7,667.58x = 45,645,353.37
  5. Step 5: Solve for x
    x = 45,645,353.37/7,667.58
  6. Step 6: Final answer
    x = 5,953.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.