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Finding the Fourth Proportional to 48,649.40, 72,917.40 and 22,356.80

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Solution

The fourth proportional to 48,649.40, 72,917.40 and 22,356.80 is: 33,509.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,649.40 : 72,917.40 = 22,356.80 : x
  2. Step 2: Convert to fraction form
    48,649.40/72,917.40 = 22,356.80/x
  3. Step 3: Cross multiply
    48,649.40x = 72,917.40 × 22,356.80
  4. Step 4: Simplify right side
    48,649.40x = 1,630,199,728.32
  5. Step 5: Solve for x
    x = 1,630,199,728.32/48,649.40
  6. Step 6: Final answer
    x = 33,509.14

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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.