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Finding the Fourth Proportional to 8,557.48, 12,827.88 and 4,399.48

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Solution

The fourth proportional to 8,557.48, 12,827.88 and 4,399.48 is: 6,594.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.48 : 12,827.88 = 4,399.48 : x
  2. Step 2: Convert to fraction form
    8,557.48/12,827.88 = 4,399.48/x
  3. Step 3: Cross multiply
    8,557.48x = 12,827.88 × 4,399.48
  4. Step 4: Simplify right side
    8,557.48x = 56,436,001.50
  5. Step 5: Solve for x
    x = 56,436,001.50/8,557.48
  6. Step 6: Final answer
    x = 6,594.93

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1.5x scale

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.