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Finding the Fourth Proportional to 39,991, 55,187.58 and 23,225.08

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Solution

The fourth proportional to 39,991, 55,187.58 and 23,225.08 is: 32,050.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,991 : 55,187.58 = 23,225.08 : x
  2. Step 2: Convert to fraction form
    39,991/55,187.58 = 23,225.08/x
  3. Step 3: Cross multiply
    39,991x = 55,187.58 × 23,225.08
  4. Step 4: Simplify right side
    39,991x = 1,281,735,960.51
  5. Step 5: Solve for x
    x = 1,281,735,960.51/39,991
  6. Step 6: Final answer
    x = 32,050.61

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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.