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Finding the Fourth Proportional to 18,312.84, 27,477.90 and 6,622.92

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Solution

The fourth proportional to 18,312.84, 27,477.90 and 6,622.92 is: 9,937.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.84 : 27,477.90 = 6,622.92 : x
  2. Step 2: Convert to fraction form
    18,312.84/27,477.90 = 6,622.92/x
  3. Step 3: Cross multiply
    18,312.84x = 27,477.90 × 6,622.92
  4. Step 4: Simplify right side
    18,312.84x = 181,983,933.47
  5. Step 5: Solve for x
    x = 181,983,933.47/18,312.84
  6. Step 6: Final answer
    x = 9,937.50

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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.