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Finding the Fourth Proportional to 5,582.32, 8,372.40 and 5,304.80

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Solution

The fourth proportional to 5,582.32, 8,372.40 and 5,304.80 is: 7,956.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,582.32 : 8,372.40 = 5,304.80 : x
  2. Step 2: Convert to fraction form
    5,582.32/8,372.40 = 5,304.80/x
  3. Step 3: Cross multiply
    5,582.32x = 8,372.40 × 5,304.80
  4. Step 4: Simplify right side
    5,582.32x = 44,413,907.52
  5. Step 5: Solve for x
    x = 44,413,907.52/5,582.32
  6. Step 6: Final answer
    x = 7,956.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.