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Finding the Fourth Proportional to 73,026.20, 100,776.16 and 39,492.20

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Solution

The fourth proportional to 73,026.20, 100,776.16 and 39,492.20 is: 54,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,026.20 : 100,776.16 = 39,492.20 : x
  2. Step 2: Convert to fraction form
    73,026.20/100,776.16 = 39,492.20/x
  3. Step 3: Cross multiply
    73,026.20x = 100,776.16 × 39,492.20
  4. Step 4: Simplify right side
    73,026.20x = 3,979,872,265.95
  5. Step 5: Solve for x
    x = 3,979,872,265.95/73,026.20
  6. Step 6: Final answer
    x = 54,499.24

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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.