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Finding the Fourth Proportional to 9,985.92, 14,946.04 and 8,892.42

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Solution

The fourth proportional to 9,985.92, 14,946.04 and 8,892.42 is: 13,309.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.92 : 14,946.04 = 8,892.42 : x
  2. Step 2: Convert to fraction form
    9,985.92/14,946.04 = 8,892.42/x
  3. Step 3: Cross multiply
    9,985.92x = 14,946.04 × 8,892.42
  4. Step 4: Simplify right side
    9,985.92x = 132,906,465.02
  5. Step 5: Solve for x
    x = 132,906,465.02/9,985.92
  6. Step 6: Final answer
    x = 13,309.39

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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.