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Finding the Fourth Proportional to 5,854.79, 8,784.21 and 3,391.76

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Solution

The fourth proportional to 5,854.79, 8,784.21 and 3,391.76 is: 5,088.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,854.79 : 8,784.21 = 3,391.76 : x
  2. Step 2: Convert to fraction form
    5,854.79/8,784.21 = 3,391.76/x
  3. Step 3: Cross multiply
    5,854.79x = 8,784.21 × 3,391.76
  4. Step 4: Simplify right side
    5,854.79x = 29,793,966.79
  5. Step 5: Solve for x
    x = 29,793,966.79/5,854.79
  6. Step 6: Final answer
    x = 5,088.82

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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.