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Finding the Fourth Proportional to 62,271, 93,407.32 and 20,718

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Solution

The fourth proportional to 62,271, 93,407.32 and 20,718 is: 31,077.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,271 : 93,407.32 = 20,718 : x
  2. Step 2: Convert to fraction form
    62,271/93,407.32 = 20,718/x
  3. Step 3: Cross multiply
    62,271x = 93,407.32 × 20,718
  4. Step 4: Simplify right side
    62,271x = 1,935,212,855.76
  5. Step 5: Solve for x
    x = 1,935,212,855.76/62,271
  6. Step 6: Final answer
    x = 31,077.27

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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.