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Finding the Fourth Proportional to 12,357.36, 17,048.92 and 7,048.35

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Solution

The fourth proportional to 12,357.36, 17,048.92 and 7,048.35 is: 9,724.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.36 : 17,048.92 = 7,048.35 : x
  2. Step 2: Convert to fraction form
    12,357.36/17,048.92 = 7,048.35/x
  3. Step 3: Cross multiply
    12,357.36x = 17,048.92 × 7,048.35
  4. Step 4: Simplify right side
    12,357.36x = 120,166,755.28
  5. Step 5: Solve for x
    x = 120,166,755.28/12,357.36
  6. Step 6: Final answer
    x = 9,724.31

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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.