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Finding the Fourth Proportional to 61,990.10, 93,009.45 and 22,551.20

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Solution

The fourth proportional to 61,990.10, 93,009.45 and 22,551.20 is: 33,835.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,990.10 : 93,009.45 = 22,551.20 : x
  2. Step 2: Convert to fraction form
    61,990.10/93,009.45 = 22,551.20/x
  3. Step 3: Cross multiply
    61,990.10x = 93,009.45 × 22,551.20
  4. Step 4: Simplify right side
    61,990.10x = 2,097,474,708.84
  5. Step 5: Solve for x
    x = 2,097,474,708.84/61,990.10
  6. Step 6: Final answer
    x = 33,835.64

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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.