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Finding the Fourth Proportional to 7,990.86, 11,024.13 and 5,303.34

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Solution

The fourth proportional to 7,990.86, 11,024.13 and 5,303.34 is: 7,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.86 : 11,024.13 = 5,303.34 : x
  2. Step 2: Convert to fraction form
    7,990.86/11,024.13 = 5,303.34/x
  3. Step 3: Cross multiply
    7,990.86x = 11,024.13 × 5,303.34
  4. Step 4: Simplify right side
    7,990.86x = 58,464,709.59
  5. Step 5: Solve for x
    x = 58,464,709.59/7,990.86
  6. Step 6: Final answer
    x = 7,316.45

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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.