Home / 18,725.10-28,080.09-7,031.94

Finding the Fourth Proportional to 18,725.10, 28,080.09 and 7,031.94

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Solution

The fourth proportional to 18,725.10, 28,080.09 and 7,031.94 is: 10,545.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.10 : 28,080.09 = 7,031.94 : x
  2. Step 2: Convert to fraction form
    18,725.10/28,080.09 = 7,031.94/x
  3. Step 3: Cross multiply
    18,725.10x = 28,080.09 × 7,031.94
  4. Step 4: Simplify right side
    18,725.10x = 197,457,508.07
  5. Step 5: Solve for x
    x = 197,457,508.07/18,725.10
  6. Step 6: Final answer
    x = 10,545.07

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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.