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Finding the Fourth Proportional to 38,281.64, 52,827.02 and 21,285.86

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Solution

The fourth proportional to 38,281.64, 52,827.02 and 21,285.86 is: 29,373.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,281.64 : 52,827.02 = 21,285.86 : x
  2. Step 2: Convert to fraction form
    38,281.64/52,827.02 = 21,285.86/x
  3. Step 3: Cross multiply
    38,281.64x = 52,827.02 × 21,285.86
  4. Step 4: Simplify right side
    38,281.64x = 1,124,468,551.94
  5. Step 5: Solve for x
    x = 1,124,468,551.94/38,281.64
  6. Step 6: Final answer
    x = 29,373.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.