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Finding the Fourth Proportional to 55,398.72, 76,411.44 and 37,485.84

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Solution

The fourth proportional to 55,398.72, 76,411.44 and 37,485.84 is: 51,704.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,398.72 : 76,411.44 = 37,485.84 : x
  2. Step 2: Convert to fraction form
    55,398.72/76,411.44 = 37,485.84/x
  3. Step 3: Cross multiply
    55,398.72x = 76,411.44 × 37,485.84
  4. Step 4: Simplify right side
    55,398.72x = 2,864,347,014.01
  5. Step 5: Solve for x
    x = 2,864,347,014.01/55,398.72
  6. Step 6: Final answer
    x = 51,704.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.