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Finding the Fourth Proportional to 4,470.64, 6,699.13 and 2,390.95

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Solution

The fourth proportional to 4,470.64, 6,699.13 and 2,390.95 is: 3,582.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,470.64 : 6,699.13 = 2,390.95 : x
  2. Step 2: Convert to fraction form
    4,470.64/6,699.13 = 2,390.95/x
  3. Step 3: Cross multiply
    4,470.64x = 6,699.13 × 2,390.95
  4. Step 4: Simplify right side
    4,470.64x = 16,017,284.87
  5. Step 5: Solve for x
    x = 16,017,284.87/4,470.64
  6. Step 6: Final answer
    x = 3,582.77

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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.