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Finding the Fourth Proportional to 61,977.80, 92,927.28 and 28,653.32

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Solution

The fourth proportional to 61,977.80, 92,927.28 and 28,653.32 is: 42,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,977.80 : 92,927.28 = 28,653.32 : x
  2. Step 2: Convert to fraction form
    61,977.80/92,927.28 = 28,653.32/x
  3. Step 3: Cross multiply
    61,977.80x = 92,927.28 × 28,653.32
  4. Step 4: Simplify right side
    61,977.80x = 2,662,675,090.57
  5. Step 5: Solve for x
    x = 2,662,675,090.57/61,977.80
  6. Step 6: Final answer
    x = 42,961.76

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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.