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Finding the Fourth Proportional to 37,998.48, 56,966.40 and 28,620.48

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Solution

The fourth proportional to 37,998.48, 56,966.40 and 28,620.48 is: 42,907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,998.48 : 56,966.40 = 28,620.48 : x
  2. Step 2: Convert to fraction form
    37,998.48/56,966.40 = 28,620.48/x
  3. Step 3: Cross multiply
    37,998.48x = 56,966.40 × 28,620.48
  4. Step 4: Simplify right side
    37,998.48x = 1,630,405,711.87
  5. Step 5: Solve for x
    x = 1,630,405,711.87/37,998.48
  6. Step 6: Final answer
    x = 42,907.13

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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.