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Finding the Fourth Proportional to 7,058.79, 9,739.44 and 4,405.23

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Solution

The fourth proportional to 7,058.79, 9,739.44 and 4,405.23 is: 6,078.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,058.79 : 9,739.44 = 4,405.23 : x
  2. Step 2: Convert to fraction form
    7,058.79/9,739.44 = 4,405.23/x
  3. Step 3: Cross multiply
    7,058.79x = 9,739.44 × 4,405.23
  4. Step 4: Simplify right side
    7,058.79x = 42,904,473.27
  5. Step 5: Solve for x
    x = 42,904,473.27/7,058.79
  6. Step 6: Final answer
    x = 6,078.16

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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.