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Finding the Fourth Proportional to 52,212, 72,056.88 and 29,860.32

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Solution

The fourth proportional to 52,212, 72,056.88 and 29,860.32 is: 41,209.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,212 : 72,056.88 = 29,860.32 : x
  2. Step 2: Convert to fraction form
    52,212/72,056.88 = 29,860.32/x
  3. Step 3: Cross multiply
    52,212x = 72,056.88 × 29,860.32
  4. Step 4: Simplify right side
    52,212x = 2,151,641,495.00
  5. Step 5: Solve for x
    x = 2,151,641,495.00/52,212
  6. Step 6: Final answer
    x = 41,209.71

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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.