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Finding the Fourth Proportional to 7,097.62, 10,646.43 and 1,903.63

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Solution

The fourth proportional to 7,097.62, 10,646.43 and 1,903.63 is: 2,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,097.62 : 10,646.43 = 1,903.63 : x
  2. Step 2: Convert to fraction form
    7,097.62/10,646.43 = 1,903.63/x
  3. Step 3: Cross multiply
    7,097.62x = 10,646.43 × 1,903.63
  4. Step 4: Simplify right side
    7,097.62x = 20,266,863.54
  5. Step 5: Solve for x
    x = 20,266,863.54/7,097.62
  6. Step 6: Final answer
    x = 2,855.45

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Similar ratio
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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.