Home / 51,221.25-70,680.13-28,558.11

Finding the Fourth Proportional to 51,221.25, 70,680.13 and 28,558.11

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Solution

The fourth proportional to 51,221.25, 70,680.13 and 28,558.11 is: 39,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,221.25 : 70,680.13 = 28,558.11 : x
  2. Step 2: Convert to fraction form
    51,221.25/70,680.13 = 28,558.11/x
  3. Step 3: Cross multiply
    51,221.25x = 70,680.13 × 28,558.11
  4. Step 4: Simplify right side
    51,221.25x = 2,018,490,927.35
  5. Step 5: Solve for x
    x = 2,018,490,927.35/51,221.25
  6. Step 6: Final answer
    x = 39,407.30

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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.