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Finding the Fourth Proportional to 39,900.16, 55,004.16 and 27,927.04

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Solution

The fourth proportional to 39,900.16, 55,004.16 and 27,927.04 is: 38,498.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,900.16 : 55,004.16 = 27,927.04 : x
  2. Step 2: Convert to fraction form
    39,900.16/55,004.16 = 27,927.04/x
  3. Step 3: Cross multiply
    39,900.16x = 55,004.16 × 27,927.04
  4. Step 4: Simplify right side
    39,900.16x = 1,536,103,376.49
  5. Step 5: Solve for x
    x = 1,536,103,376.49/39,900.16
  6. Step 6: Final answer
    x = 38,498.68

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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.