Home / 66,288.84-99,411.64-21,907.32

Finding the Fourth Proportional to 66,288.84, 99,411.64 and 21,907.32

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Solution

The fourth proportional to 66,288.84, 99,411.64 and 21,907.32 is: 32,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,288.84 : 99,411.64 = 21,907.32 : x
  2. Step 2: Convert to fraction form
    66,288.84/99,411.64 = 21,907.32/x
  3. Step 3: Cross multiply
    66,288.84x = 99,411.64 × 21,907.32
  4. Step 4: Simplify right side
    66,288.84x = 2,177,842,609.20
  5. Step 5: Solve for x
    x = 2,177,842,609.20/66,288.84
  6. Step 6: Final answer
    x = 32,853.83

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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.