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Finding the Fourth Proportional to 28,562.36, 42,841.90 and 7,502.36

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Solution

The fourth proportional to 28,562.36, 42,841.90 and 7,502.36 is: 11,253.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,562.36 : 42,841.90 = 7,502.36 : x
  2. Step 2: Convert to fraction form
    28,562.36/42,841.90 = 7,502.36/x
  3. Step 3: Cross multiply
    28,562.36x = 42,841.90 × 7,502.36
  4. Step 4: Simplify right side
    28,562.36x = 321,415,356.88
  5. Step 5: Solve for x
    x = 321,415,356.88/28,562.36
  6. Step 6: Final answer
    x = 11,253.11

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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.