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Finding the Fourth Proportional to 8,974.56, 12,385.08 and 4,995.93

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Solution

The fourth proportional to 8,974.56, 12,385.08 and 4,995.93 is: 6,894.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.56 : 12,385.08 = 4,995.93 : x
  2. Step 2: Convert to fraction form
    8,974.56/12,385.08 = 4,995.93/x
  3. Step 3: Cross multiply
    8,974.56x = 12,385.08 × 4,995.93
  4. Step 4: Simplify right side
    8,974.56x = 61,874,987.07
  5. Step 5: Solve for x
    x = 61,874,987.07/8,974.56
  6. Step 6: Final answer
    x = 6,894.49

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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.