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Finding the Fourth Proportional to 7,098.52, 10,639.14 and 4,131.40

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Solution

The fourth proportional to 7,098.52, 10,639.14 and 4,131.40 is: 6,192.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.52 : 10,639.14 = 4,131.40 : x
  2. Step 2: Convert to fraction form
    7,098.52/10,639.14 = 4,131.40/x
  3. Step 3: Cross multiply
    7,098.52x = 10,639.14 × 4,131.40
  4. Step 4: Simplify right side
    7,098.52x = 43,954,543.00
  5. Step 5: Solve for x
    x = 43,954,543.00/7,098.52
  6. Step 6: Final answer
    x = 6,192.07

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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.