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Finding the Fourth Proportional to 4,698.72, 7,048.08 and 1,779.48

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Solution

The fourth proportional to 4,698.72, 7,048.08 and 1,779.48 is: 2,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,698.72 : 7,048.08 = 1,779.48 : x
  2. Step 2: Convert to fraction form
    4,698.72/7,048.08 = 1,779.48/x
  3. Step 3: Cross multiply
    4,698.72x = 7,048.08 × 1,779.48
  4. Step 4: Simplify right side
    4,698.72x = 12,541,917.40
  5. Step 5: Solve for x
    x = 12,541,917.40/4,698.72
  6. Step 6: Final answer
    x = 2,669.22

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Similar ratio
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1.5x scale

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.