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Finding the Fourth Proportional to 37,898.79, 52,300.74 and 20,903.78

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Solution

The fourth proportional to 37,898.79, 52,300.74 and 20,903.78 is: 28,847.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,898.79 : 52,300.74 = 20,903.78 : x
  2. Step 2: Convert to fraction form
    37,898.79/52,300.74 = 20,903.78/x
  3. Step 3: Cross multiply
    37,898.79x = 52,300.74 × 20,903.78
  4. Step 4: Simplify right side
    37,898.79x = 1,093,282,901.29
  5. Step 5: Solve for x
    x = 1,093,282,901.29/37,898.79
  6. Step 6: Final answer
    x = 28,847.44

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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.