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Finding the Fourth Proportional to 8,998.79, 13,500.32 and 4,068.42

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Solution

The fourth proportional to 8,998.79, 13,500.32 and 4,068.42 is: 6,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.79 : 13,500.32 = 4,068.42 : x
  2. Step 2: Convert to fraction form
    8,998.79/13,500.32 = 4,068.42/x
  3. Step 3: Cross multiply
    8,998.79x = 13,500.32 × 4,068.42
  4. Step 4: Simplify right side
    8,998.79x = 54,924,985.30
  5. Step 5: Solve for x
    x = 54,924,985.30/8,998.79
  6. Step 6: Final answer
    x = 6,103.60

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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.