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Finding the Fourth Proportional to 48,480, 72,674.64 and 44,151.36

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Solution

The fourth proportional to 48,480, 72,674.64 and 44,151.36 is: 66,185.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,480 : 72,674.64 = 44,151.36 : x
  2. Step 2: Convert to fraction form
    48,480/72,674.64 = 44,151.36/x
  3. Step 3: Cross multiply
    48,480x = 72,674.64 × 44,151.36
  4. Step 4: Simplify right side
    48,480x = 3,208,684,193.51
  5. Step 5: Solve for x
    x = 3,208,684,193.51/48,480
  6. Step 6: Final answer
    x = 66,185.73

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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.