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Finding the Fourth Proportional to 37,612.10, 56,421 and 12,652.22

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Solution

The fourth proportional to 37,612.10, 56,421 and 12,652.22 is: 18,979.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,612.10 : 56,421 = 12,652.22 : x
  2. Step 2: Convert to fraction form
    37,612.10/56,421 = 12,652.22/x
  3. Step 3: Cross multiply
    37,612.10x = 56,421 × 12,652.22
  4. Step 4: Simplify right side
    37,612.10x = 713,850,904.62
  5. Step 5: Solve for x
    x = 713,850,904.62/37,612.10
  6. Step 6: Final answer
    x = 18,979.29

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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.