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Finding the Fourth Proportional to 37,570.50, 51,848.91 and 20,803.50

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Solution

The fourth proportional to 37,570.50, 51,848.91 and 20,803.50 is: 28,709.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,570.50 : 51,848.91 = 20,803.50 : x
  2. Step 2: Convert to fraction form
    37,570.50/51,848.91 = 20,803.50/x
  3. Step 3: Cross multiply
    37,570.50x = 51,848.91 × 20,803.50
  4. Step 4: Simplify right side
    37,570.50x = 1,078,638,799.19
  5. Step 5: Solve for x
    x = 1,078,638,799.19/37,570.50
  6. Step 6: Final answer
    x = 28,709.73

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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.