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Finding the Fourth Proportional to 7,899.83, 10,901.89 and 4,363.07

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Solution

The fourth proportional to 7,899.83, 10,901.89 and 4,363.07 is: 6,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.83 : 10,901.89 = 4,363.07 : x
  2. Step 2: Convert to fraction form
    7,899.83/10,901.89 = 4,363.07/x
  3. Step 3: Cross multiply
    7,899.83x = 10,901.89 × 4,363.07
  4. Step 4: Simplify right side
    7,899.83x = 47,565,660.15
  5. Step 5: Solve for x
    x = 47,565,660.15/7,899.83
  6. Step 6: Final answer
    x = 6,021.10

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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.