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Finding the Fourth Proportional to 4,698.93, 7,048.53 and 1,578.81

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Solution

The fourth proportional to 4,698.93, 7,048.53 and 1,578.81 is: 2,368.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,698.93 : 7,048.53 = 1,578.81 : x
  2. Step 2: Convert to fraction form
    4,698.93/7,048.53 = 1,578.81/x
  3. Step 3: Cross multiply
    4,698.93x = 7,048.53 × 1,578.81
  4. Step 4: Simplify right side
    4,698.93x = 11,128,289.65
  5. Step 5: Solve for x
    x = 11,128,289.65/4,698.93
  6. Step 6: Final answer
    x = 2,368.26

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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.