Home / 51,008.10-70,388.91-28,348.68

Finding the Fourth Proportional to 51,008.10, 70,388.91 and 28,348.68

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Solution

The fourth proportional to 51,008.10, 70,388.91 and 28,348.68 is: 39,119.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,008.10 : 70,388.91 = 28,348.68 : x
  2. Step 2: Convert to fraction form
    51,008.10/70,388.91 = 28,348.68/x
  3. Step 3: Cross multiply
    51,008.10x = 70,388.91 × 28,348.68
  4. Step 4: Simplify right side
    51,008.10x = 1,995,432,685.14
  5. Step 5: Solve for x
    x = 1,995,432,685.14/51,008.10
  6. Step 6: Final answer
    x = 39,119.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.