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Finding the Fourth Proportional to 7,302.67, 10,955.90 and 4,186.20

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Solution

The fourth proportional to 7,302.67, 10,955.90 and 4,186.20 is: 6,280.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,302.67 : 10,955.90 = 4,186.20 : x
  2. Step 2: Convert to fraction form
    7,302.67/10,955.90 = 4,186.20/x
  3. Step 3: Cross multiply
    7,302.67x = 10,955.90 × 4,186.20
  4. Step 4: Simplify right side
    7,302.67x = 45,863,588.58
  5. Step 5: Solve for x
    x = 45,863,588.58/7,302.67
  6. Step 6: Final answer
    x = 6,280.39

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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.