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Finding the Fourth Proportional to 5,582.21, 7,703.19 and 3,345.32

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Solution

The fourth proportional to 5,582.21, 7,703.19 and 3,345.32 is: 4,616.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,582.21 : 7,703.19 = 3,345.32 : x
  2. Step 2: Convert to fraction form
    5,582.21/7,703.19 = 3,345.32/x
  3. Step 3: Cross multiply
    5,582.21x = 7,703.19 × 3,345.32
  4. Step 4: Simplify right side
    5,582.21x = 25,769,654.83
  5. Step 5: Solve for x
    x = 25,769,654.83/5,582.21
  6. Step 6: Final answer
    x = 4,616.39

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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.