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Finding the Fourth Proportional to 28,030.73, 42,052.23 and 8,308.08

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Solution

The fourth proportional to 28,030.73, 42,052.23 and 8,308.08 is: 12,463.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.73 : 42,052.23 = 8,308.08 : x
  2. Step 2: Convert to fraction form
    28,030.73/42,052.23 = 8,308.08/x
  3. Step 3: Cross multiply
    28,030.73x = 42,052.23 × 8,308.08
  4. Step 4: Simplify right side
    28,030.73x = 349,373,291.02
  5. Step 5: Solve for x
    x = 349,373,291.02/28,030.73
  6. Step 6: Final answer
    x = 12,463.94

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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.