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Finding the Fourth Proportional to 14,949.01, 20,621.71 and 8,894.95

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Solution

The fourth proportional to 14,949.01, 20,621.71 and 8,894.95 is: 12,270.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,949.01 : 20,621.71 = 8,894.95 : x
  2. Step 2: Convert to fraction form
    14,949.01/20,621.71 = 8,894.95/x
  3. Step 3: Cross multiply
    14,949.01x = 20,621.71 × 8,894.95
  4. Step 4: Simplify right side
    14,949.01x = 183,429,038.93
  5. Step 5: Solve for x
    x = 183,429,038.93/14,949.01
  6. Step 6: Final answer
    x = 12,270.32

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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.