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Finding the Fourth Proportional to 8,498.40, 11,725.40 and 5,352.77

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Solution

The fourth proportional to 8,498.40, 11,725.40 and 5,352.77 is: 7,385.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,498.40 : 11,725.40 = 5,352.77 : x
  2. Step 2: Convert to fraction form
    8,498.40/11,725.40 = 5,352.77/x
  3. Step 3: Cross multiply
    8,498.40x = 11,725.40 × 5,352.77
  4. Step 4: Simplify right side
    8,498.40x = 62,763,283.97
  5. Step 5: Solve for x
    x = 62,763,283.97/8,498.40
  6. Step 6: Final answer
    x = 7,385.31

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1.5x scale

Why These Related Problems?

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