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Finding the Fourth Proportional to 7,392.80, 10,203.09 and 4,248.92

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Solution

The fourth proportional to 7,392.80, 10,203.09 and 4,248.92 is: 5,864.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,392.80 : 10,203.09 = 4,248.92 : x
  2. Step 2: Convert to fraction form
    7,392.80/10,203.09 = 4,248.92/x
  3. Step 3: Cross multiply
    7,392.80x = 10,203.09 × 4,248.92
  4. Step 4: Simplify right side
    7,392.80x = 43,352,113.16
  5. Step 5: Solve for x
    x = 43,352,113.16/7,392.80
  6. Step 6: Final answer
    x = 5,864.10

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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.