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Finding the Fourth Proportional to 28,463.94, 42,679.44 and 11,804.94

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Solution

The fourth proportional to 28,463.94, 42,679.44 and 11,804.94 is: 17,700.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,463.94 : 42,679.44 = 11,804.94 : x
  2. Step 2: Convert to fraction form
    28,463.94/42,679.44 = 11,804.94/x
  3. Step 3: Cross multiply
    28,463.94x = 42,679.44 × 11,804.94
  4. Step 4: Simplify right side
    28,463.94x = 503,828,228.43
  5. Step 5: Solve for x
    x = 503,828,228.43/28,463.94
  6. Step 6: Final answer
    x = 17,700.58

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1.5x scale

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.