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Finding the Fourth Proportional to 8,901.70, 13,354.56 and 4,739.51

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Solution

The fourth proportional to 8,901.70, 13,354.56 and 4,739.51 is: 7,110.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.70 : 13,354.56 = 4,739.51 : x
  2. Step 2: Convert to fraction form
    8,901.70/13,354.56 = 4,739.51/x
  3. Step 3: Cross multiply
    8,901.70x = 13,354.56 × 4,739.51
  4. Step 4: Simplify right side
    8,901.70x = 63,294,104.05
  5. Step 5: Solve for x
    x = 63,294,104.05/8,901.70
  6. Step 6: Final answer
    x = 7,110.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.