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Finding the Fourth Proportional to 12,622.16, 18,927.84 and 5,602.16

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Solution

The fourth proportional to 12,622.16, 18,927.84 and 5,602.16 is: 8,400.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,622.16 : 18,927.84 = 5,602.16 : x
  2. Step 2: Convert to fraction form
    12,622.16/18,927.84 = 5,602.16/x
  3. Step 3: Cross multiply
    12,622.16x = 18,927.84 × 5,602.16
  4. Step 4: Simplify right side
    12,622.16x = 106,036,788.13
  5. Step 5: Solve for x
    x = 106,036,788.13/12,622.16
  6. Step 6: Final answer
    x = 8,400.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.