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Finding the Fourth Proportional to 48,651.84, 72,931.32 and 19,059.84

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Solution

The fourth proportional to 48,651.84, 72,931.32 and 19,059.84 is: 28,571.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,651.84 : 72,931.32 = 19,059.84 : x
  2. Step 2: Convert to fraction form
    48,651.84/72,931.32 = 19,059.84/x
  3. Step 3: Cross multiply
    48,651.84x = 72,931.32 × 19,059.84
  4. Step 4: Simplify right side
    48,651.84x = 1,390,059,290.19
  5. Step 5: Solve for x
    x = 1,390,059,290.19/48,651.84
  6. Step 6: Final answer
    x = 28,571.57

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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.