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Finding the Fourth Proportional to 8,374.05, 11,555.78 and 4,597.20

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Solution

The fourth proportional to 8,374.05, 11,555.78 and 4,597.20 is: 6,343.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.05 : 11,555.78 = 4,597.20 : x
  2. Step 2: Convert to fraction form
    8,374.05/11,555.78 = 4,597.20/x
  3. Step 3: Cross multiply
    8,374.05x = 11,555.78 × 4,597.20
  4. Step 4: Simplify right side
    8,374.05x = 53,124,208.83
  5. Step 5: Solve for x
    x = 53,124,208.83/8,374.05
  6. Step 6: Final answer
    x = 6,343.91

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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.