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Finding the Fourth Proportional to 5,365.72, 8,048.95 and 1,856.07

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Solution

The fourth proportional to 5,365.72, 8,048.95 and 1,856.07 is: 2,784.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,365.72 : 8,048.95 = 1,856.07 : x
  2. Step 2: Convert to fraction form
    5,365.72/8,048.95 = 1,856.07/x
  3. Step 3: Cross multiply
    5,365.72x = 8,048.95 × 1,856.07
  4. Step 4: Simplify right side
    5,365.72x = 14,939,414.63
  5. Step 5: Solve for x
    x = 14,939,414.63/5,365.72
  6. Step 6: Final answer
    x = 2,784.23

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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.