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Finding the Fourth Proportional to 7,900.86, 10,903.02 and 4,364.04

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Solution

The fourth proportional to 7,900.86, 10,903.02 and 4,364.04 is: 6,022.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.86 : 10,903.02 = 4,364.04 : x
  2. Step 2: Convert to fraction form
    7,900.86/10,903.02 = 4,364.04/x
  3. Step 3: Cross multiply
    7,900.86x = 10,903.02 × 4,364.04
  4. Step 4: Simplify right side
    7,900.86x = 47,581,215.40
  5. Step 5: Solve for x
    x = 47,581,215.40/7,900.86
  6. Step 6: Final answer
    x = 6,022.28

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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.