Home / 51,098.28-70,515.57-28,742.28

Finding the Fourth Proportional to 51,098.28, 70,515.57 and 28,742.28

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Solution

The fourth proportional to 51,098.28, 70,515.57 and 28,742.28 is: 39,664.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,098.28 : 70,515.57 = 28,742.28 : x
  2. Step 2: Convert to fraction form
    51,098.28/70,515.57 = 28,742.28/x
  3. Step 3: Cross multiply
    51,098.28x = 70,515.57 × 28,742.28
  4. Step 4: Simplify right side
    51,098.28x = 2,026,778,257.30
  5. Step 5: Solve for x
    x = 2,026,778,257.30/51,098.28
  6. Step 6: Final answer
    x = 39,664.31

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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.