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Finding the Fourth Proportional to 19,052.55, 28,581.86 and 7,953.53

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Solution

The fourth proportional to 19,052.55, 28,581.86 and 7,953.53 is: 11,931.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,052.55 : 28,581.86 = 7,953.53 : x
  2. Step 2: Convert to fraction form
    19,052.55/28,581.86 = 7,953.53/x
  3. Step 3: Cross multiply
    19,052.55x = 28,581.86 × 7,953.53
  4. Step 4: Simplify right side
    19,052.55x = 227,326,557.94
  5. Step 5: Solve for x
    x = 227,326,557.94/19,052.55
  6. Step 6: Final answer
    x = 11,931.56

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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.