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Finding the Fourth Proportional to 4,698.28, 7,048.80 and 1,411.88

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Solution

The fourth proportional to 4,698.28, 7,048.80 and 1,411.88 is: 2,118.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,698.28 : 7,048.80 = 1,411.88 : x
  2. Step 2: Convert to fraction form
    4,698.28/7,048.80 = 1,411.88/x
  3. Step 3: Cross multiply
    4,698.28x = 7,048.80 × 1,411.88
  4. Step 4: Simplify right side
    4,698.28x = 9,952,024.50
  5. Step 5: Solve for x
    x = 9,952,024.50/4,698.28
  6. Step 6: Final answer
    x = 2,118.23

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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.