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Finding the Fourth Proportional to 37,392.50, 51,605.30 and 20,625.50

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Solution

The fourth proportional to 37,392.50, 51,605.30 and 20,625.50 is: 28,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,392.50 : 51,605.30 = 20,625.50 : x
  2. Step 2: Convert to fraction form
    37,392.50/51,605.30 = 20,625.50/x
  3. Step 3: Cross multiply
    37,392.50x = 51,605.30 × 20,625.50
  4. Step 4: Simplify right side
    37,392.50x = 1,064,385,012.02
  5. Step 5: Solve for x
    x = 1,064,385,012.02/37,392.50
  6. Step 6: Final answer
    x = 28,465.20

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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.