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Finding the Fourth Proportional to 62,573.16, 93,801.42 and 20,991

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Solution

The fourth proportional to 62,573.16, 93,801.42 and 20,991 is: 31,466.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,573.16 : 93,801.42 = 20,991 : x
  2. Step 2: Convert to fraction form
    62,573.16/93,801.42 = 20,991/x
  3. Step 3: Cross multiply
    62,573.16x = 93,801.42 × 20,991
  4. Step 4: Simplify right side
    62,573.16x = 1,968,985,607.22
  5. Step 5: Solve for x
    x = 1,968,985,607.22/62,573.16
  6. Step 6: Final answer
    x = 31,466.94

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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.