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Finding the Fourth Proportional to 37,415.90, 51,633.97 and 20,648.90

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Solution

The fourth proportional to 37,415.90, 51,633.97 and 20,648.90 is: 28,495.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,415.90 : 51,633.97 = 20,648.90 : x
  2. Step 2: Convert to fraction form
    37,415.90/51,633.97 = 20,648.90/x
  3. Step 3: Cross multiply
    37,415.90x = 51,633.97 × 20,648.90
  4. Step 4: Simplify right side
    37,415.90x = 1,066,184,683.13
  5. Step 5: Solve for x
    x = 1,066,184,683.13/37,415.90
  6. Step 6: Final answer
    x = 28,495.50

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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.