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Finding the Fourth Proportional to 49,277.80, 73,916.70 and 28,209.70

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Solution

The fourth proportional to 49,277.80, 73,916.70 and 28,209.70 is: 42,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,277.80 : 73,916.70 = 28,209.70 : x
  2. Step 2: Convert to fraction form
    49,277.80/73,916.70 = 28,209.70/x
  3. Step 3: Cross multiply
    49,277.80x = 73,916.70 × 28,209.70
  4. Step 4: Simplify right side
    49,277.80x = 2,085,167,931.99
  5. Step 5: Solve for x
    x = 2,085,167,931.99/49,277.80
  6. Step 6: Final answer
    x = 42,314.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.