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Finding the Fourth Proportional to 8,910.84, 13,362.31 and 4,750.08

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Solution

The fourth proportional to 8,910.84, 13,362.31 and 4,750.08 is: 7,123.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,910.84 : 13,362.31 = 4,750.08 : x
  2. Step 2: Convert to fraction form
    8,910.84/13,362.31 = 4,750.08/x
  3. Step 3: Cross multiply
    8,910.84x = 13,362.31 × 4,750.08
  4. Step 4: Simplify right side
    8,910.84x = 63,472,041.48
  5. Step 5: Solve for x
    x = 63,472,041.48/8,910.84
  6. Step 6: Final answer
    x = 7,123.01

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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.