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Finding the Fourth Proportional to 8,722.15, 12,041.03 and 5,904.43

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Solution

The fourth proportional to 8,722.15, 12,041.03 and 5,904.43 is: 8,151.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.15 : 12,041.03 = 5,904.43 : x
  2. Step 2: Convert to fraction form
    8,722.15/12,041.03 = 5,904.43/x
  3. Step 3: Cross multiply
    8,722.15x = 12,041.03 × 5,904.43
  4. Step 4: Simplify right side
    8,722.15x = 71,095,403.42
  5. Step 5: Solve for x
    x = 71,095,403.42/8,722.15
  6. Step 6: Final answer
    x = 8,151.14

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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.