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Finding the Fourth Proportional to 7,698.69, 10,623.48 and 4,340.91

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Solution

The fourth proportional to 7,698.69, 10,623.48 and 4,340.91 is: 5,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,698.69 : 10,623.48 = 4,340.91 : x
  2. Step 2: Convert to fraction form
    7,698.69/10,623.48 = 4,340.91/x
  3. Step 3: Cross multiply
    7,698.69x = 10,623.48 × 4,340.91
  4. Step 4: Simplify right side
    7,698.69x = 46,115,570.57
  5. Step 5: Solve for x
    x = 46,115,570.57/7,698.69
  6. Step 6: Final answer
    x = 5,990.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.