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Finding the Fourth Proportional to 1,762.96, 2,647.44 and 1,470.16

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Solution

The fourth proportional to 1,762.96, 2,647.44 and 1,470.16 is: 2,207.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762.96 : 2,647.44 = 1,470.16 : x
  2. Step 2: Convert to fraction form
    1,762.96/2,647.44 = 1,470.16/x
  3. Step 3: Cross multiply
    1,762.96x = 2,647.44 × 1,470.16
  4. Step 4: Simplify right side
    1,762.96x = 3,892,160.39
  5. Step 5: Solve for x
    x = 3,892,160.39/1,762.96
  6. Step 6: Final answer
    x = 2,207.74

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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.