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Finding the Fourth Proportional to 10,614.38, 15,919.07 and 4,368.20

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Solution

The fourth proportional to 10,614.38, 15,919.07 and 4,368.20 is: 6,551.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,614.38 : 15,919.07 = 4,368.20 : x
  2. Step 2: Convert to fraction form
    10,614.38/15,919.07 = 4,368.20/x
  3. Step 3: Cross multiply
    10,614.38x = 15,919.07 × 4,368.20
  4. Step 4: Simplify right side
    10,614.38x = 69,537,580.14
  5. Step 5: Solve for x
    x = 69,537,580.14/10,614.38
  6. Step 6: Final answer
    x = 6,551.26

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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.