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Finding the Fourth Proportional to 8,424.04, 11,623.78 and 4,698.28

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Solution

The fourth proportional to 8,424.04, 11,623.78 and 4,698.28 is: 6,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.04 : 11,623.78 = 4,698.28 : x
  2. Step 2: Convert to fraction form
    8,424.04/11,623.78 = 4,698.28/x
  3. Step 3: Cross multiply
    8,424.04x = 11,623.78 × 4,698.28
  4. Step 4: Simplify right side
    8,424.04x = 54,611,773.10
  5. Step 5: Solve for x
    x = 54,611,773.10/8,424.04
  6. Step 6: Final answer
    x = 6,482.85

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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.