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Finding the Fourth Proportional to 8,962.95, 12,369.17 and 4,929.95

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Solution

The fourth proportional to 8,962.95, 12,369.17 and 4,929.95 is: 6,803.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,962.95 : 12,369.17 = 4,929.95 : x
  2. Step 2: Convert to fraction form
    8,962.95/12,369.17 = 4,929.95/x
  3. Step 3: Cross multiply
    8,962.95x = 12,369.17 × 4,929.95
  4. Step 4: Simplify right side
    8,962.95x = 60,979,349.45
  5. Step 5: Solve for x
    x = 60,979,349.45/8,962.95
  6. Step 6: Final answer
    x = 6,803.49

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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.