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Finding the Fourth Proportional to 8,951.96, 12,353.70 and 4,973.48

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Solution

The fourth proportional to 8,951.96, 12,353.70 and 4,973.48 is: 6,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.96 : 12,353.70 = 4,973.48 : x
  2. Step 2: Convert to fraction form
    8,951.96/12,353.70 = 4,973.48/x
  3. Step 3: Cross multiply
    8,951.96x = 12,353.70 × 4,973.48
  4. Step 4: Simplify right side
    8,951.96x = 61,440,879.88
  5. Step 5: Solve for x
    x = 61,440,879.88/8,951.96
  6. Step 6: Final answer
    x = 6,863.40

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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.