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Finding the Fourth Proportional to 66,097.53, 99,152.55 and 21,724.47

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Solution

The fourth proportional to 66,097.53, 99,152.55 and 21,724.47 is: 32,588.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,097.53 : 99,152.55 = 21,724.47 : x
  2. Step 2: Convert to fraction form
    66,097.53/99,152.55 = 21,724.47/x
  3. Step 3: Cross multiply
    66,097.53x = 99,152.55 × 21,724.47
  4. Step 4: Simplify right side
    66,097.53x = 2,154,036,597.90
  5. Step 5: Solve for x
    x = 2,154,036,597.90/66,097.53
  6. Step 6: Final answer
    x = 32,588.76

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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.