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Finding the Fourth Proportional to 61,666.80, 92,521.80 and 22,225.20

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Solution

The fourth proportional to 61,666.80, 92,521.80 and 22,225.20 is: 33,345.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,666.80 : 92,521.80 = 22,225.20 : x
  2. Step 2: Convert to fraction form
    61,666.80/92,521.80 = 22,225.20/x
  3. Step 3: Cross multiply
    61,666.80x = 92,521.80 × 22,225.20
  4. Step 4: Simplify right side
    61,666.80x = 2,056,315,509.36
  5. Step 5: Solve for x
    x = 2,056,315,509.36/61,666.80
  6. Step 6: Final answer
    x = 33,345.58

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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.