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Finding the Fourth Proportional to 7,903.96, 10,905.42 and 4,759

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Solution

The fourth proportional to 7,903.96, 10,905.42 and 4,759 is: 6,566.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.96 : 10,905.42 = 4,759 : x
  2. Step 2: Convert to fraction form
    7,903.96/10,905.42 = 4,759/x
  3. Step 3: Cross multiply
    7,903.96x = 10,905.42 × 4,759
  4. Step 4: Simplify right side
    7,903.96x = 51,898,893.78
  5. Step 5: Solve for x
    x = 51,898,893.78/7,903.96
  6. Step 6: Final answer
    x = 6,566.19

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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.