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Finding the Fourth Proportional to 14,028.94, 21,043.41 and 7,103.44

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Solution

The fourth proportional to 14,028.94, 21,043.41 and 7,103.44 is: 10,655.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.94 : 21,043.41 = 7,103.44 : x
  2. Step 2: Convert to fraction form
    14,028.94/21,043.41 = 7,103.44/x
  3. Step 3: Cross multiply
    14,028.94x = 21,043.41 × 7,103.44
  4. Step 4: Simplify right side
    14,028.94x = 149,480,547.72
  5. Step 5: Solve for x
    x = 149,480,547.72/14,028.94
  6. Step 6: Final answer
    x = 10,655.16

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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.