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Finding the Fourth Proportional to 28,294.59, 42,448.44 and 8,303.27

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Solution

The fourth proportional to 28,294.59, 42,448.44 and 8,303.27 is: 12,456.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.59 : 42,448.44 = 8,303.27 : x
  2. Step 2: Convert to fraction form
    28,294.59/42,448.44 = 8,303.27/x
  3. Step 3: Cross multiply
    28,294.59x = 42,448.44 × 8,303.27
  4. Step 4: Simplify right side
    28,294.59x = 352,460,646.16
  5. Step 5: Solve for x
    x = 352,460,646.16/28,294.59
  6. Step 6: Final answer
    x = 12,456.82

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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.