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Finding the Fourth Proportional to 28,373.44, 42,562.98 and 10,858

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Solution

The fourth proportional to 28,373.44, 42,562.98 and 10,858 is: 16,288.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,373.44 : 42,562.98 = 10,858 : x
  2. Step 2: Convert to fraction form
    28,373.44/42,562.98 = 10,858/x
  3. Step 3: Cross multiply
    28,373.44x = 42,562.98 × 10,858
  4. Step 4: Simplify right side
    28,373.44x = 462,148,836.84
  5. Step 5: Solve for x
    x = 462,148,836.84/28,373.44
  6. Step 6: Final answer
    x = 16,288.08

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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.