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Finding the Fourth Proportional to 7,316.68, 10,096.68 and 4,172.80

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Solution

The fourth proportional to 7,316.68, 10,096.68 and 4,172.80 is: 5,758.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,316.68 : 10,096.68 = 4,172.80 : x
  2. Step 2: Convert to fraction form
    7,316.68/10,096.68 = 4,172.80/x
  3. Step 3: Cross multiply
    7,316.68x = 10,096.68 × 4,172.80
  4. Step 4: Simplify right side
    7,316.68x = 42,131,426.30
  5. Step 5: Solve for x
    x = 42,131,426.30/7,316.68
  6. Step 6: Final answer
    x = 5,758.27

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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.