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Finding the Fourth Proportional to 6,374.09, 8,774.40 and 5,529.82

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Solution

The fourth proportional to 6,374.09, 8,774.40 and 5,529.82 is: 7,612.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,374.09 : 8,774.40 = 5,529.82 : x
  2. Step 2: Convert to fraction form
    6,374.09/8,774.40 = 5,529.82/x
  3. Step 3: Cross multiply
    6,374.09x = 8,774.40 × 5,529.82
  4. Step 4: Simplify right side
    6,374.09x = 48,520,852.61
  5. Step 5: Solve for x
    x = 48,520,852.61/6,374.09
  6. Step 6: Final answer
    x = 7,612.20

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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.