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Finding the Fourth Proportional to 6,470.70, 8,928.05 and 4,699.23

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Solution

The fourth proportional to 6,470.70, 8,928.05 and 4,699.23 is: 6,483.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,470.70 : 8,928.05 = 4,699.23 : x
  2. Step 2: Convert to fraction form
    6,470.70/8,928.05 = 4,699.23/x
  3. Step 3: Cross multiply
    6,470.70x = 8,928.05 × 4,699.23
  4. Step 4: Simplify right side
    6,470.70x = 41,954,960.40
  5. Step 5: Solve for x
    x = 41,954,960.40/6,470.70
  6. Step 6: Final answer
    x = 6,483.84

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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.