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Finding the Fourth Proportional to 8,877,104.96, 12,258,865.48 and 8,393,486.72

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Solution

The fourth proportional to 8,877,104.96, 12,258,865.48 and 8,393,486.72 is: 11,591,011.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877,104.96 : 12,258,865.48 = 8,393,486.72 : x
  2. Step 2: Convert to fraction form
    8,877,104.96/12,258,865.48 = 8,393,486.72/x
  3. Step 3: Cross multiply
    8,877,104.96x = 12,258,865.48 × 8,393,486.72
  4. Step 4: Simplify right side
    8,877,104.96x = 102,894,624,608,646.44
  5. Step 5: Solve for x
    x = 102,894,624,608,646.44/8,877,104.96
  6. Step 6: Final answer
    x = 11,591,011.38

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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.