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Finding the Fourth Proportional to 60,530.58, 90,810.44 and 18,977.58

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Solution

The fourth proportional to 60,530.58, 90,810.44 and 18,977.58 is: 28,470.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,530.58 : 90,810.44 = 18,977.58 : x
  2. Step 2: Convert to fraction form
    60,530.58/90,810.44 = 18,977.58/x
  3. Step 3: Cross multiply
    60,530.58x = 90,810.44 × 18,977.58
  4. Step 4: Simplify right side
    60,530.58x = 1,723,362,389.94
  5. Step 5: Solve for x
    x = 1,723,362,389.94/60,530.58
  6. Step 6: Final answer
    x = 28,470.94

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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.