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Finding the Fourth Proportional to 8,962.86, 12,369.07 and 4,930.00

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Solution

The fourth proportional to 8,962.86, 12,369.07 and 4,930.00 is: 6,803.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,962.86 : 12,369.07 = 4,930.00 : x
  2. Step 2: Convert to fraction form
    8,962.86/12,369.07 = 4,930.00/x
  3. Step 3: Cross multiply
    8,962.86x = 12,369.07 × 4,930.00
  4. Step 4: Simplify right side
    8,962.86x = 60,979,490.34
  5. Step 5: Solve for x
    x = 60,979,490.34/8,962.86
  6. Step 6: Final answer
    x = 6,803.57

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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.