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Finding the Fourth Proportional to 37,491.40, 51,737.19 and 20,495.70

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Solution

The fourth proportional to 37,491.40, 51,737.19 and 20,495.70 is: 28,283.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,491.40 : 51,737.19 = 20,495.70 : x
  2. Step 2: Convert to fraction form
    37,491.40/51,737.19 = 20,495.70/x
  3. Step 3: Cross multiply
    37,491.40x = 51,737.19 × 20,495.70
  4. Step 4: Simplify right side
    37,491.40x = 1,060,389,925.08
  5. Step 5: Solve for x
    x = 1,060,389,925.08/37,491.40
  6. Step 6: Final answer
    x = 28,283.55

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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.