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Finding the Fourth Proportional to 62,873.60, 94,307.70 and 21,320.60

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Solution

The fourth proportional to 62,873.60, 94,307.70 and 21,320.60 is: 31,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,873.60 : 94,307.70 = 21,320.60 : x
  2. Step 2: Convert to fraction form
    62,873.60/94,307.70 = 21,320.60/x
  3. Step 3: Cross multiply
    62,873.60x = 94,307.70 × 21,320.60
  4. Step 4: Simplify right side
    62,873.60x = 2,010,696,748.62
  5. Step 5: Solve for x
    x = 2,010,696,748.62/62,873.60
  6. Step 6: Final answer
    x = 31,979.98

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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.