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Finding the Fourth Proportional to 38,503,477.80, 57,755,216.70 and 15,776,821.80

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Solution

The fourth proportional to 38,503,477.80, 57,755,216.70 and 15,776,821.80 is: 23,665,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,503,477.80 : 57,755,216.70 = 15,776,821.80 : x
  2. Step 2: Convert to fraction form
    38,503,477.80/57,755,216.70 = 15,776,821.80/x
  3. Step 3: Cross multiply
    38,503,477.80x = 57,755,216.70 × 15,776,821.80
  4. Step 4: Simplify right side
    38,503,477.80x = 911,193,761,896,284.12
  5. Step 5: Solve for x
    x = 911,193,761,896,284.12/38,503,477.80
  6. Step 6: Final answer
    x = 23,665,232.70

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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.