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Finding the Fourth Proportional to 4,937.55, 6,813.90 and 2,948.28

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Solution

The fourth proportional to 4,937.55, 6,813.90 and 2,948.28 is: 4,068.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,937.55 : 6,813.90 = 2,948.28 : x
  2. Step 2: Convert to fraction form
    4,937.55/6,813.90 = 2,948.28/x
  3. Step 3: Cross multiply
    4,937.55x = 6,813.90 × 2,948.28
  4. Step 4: Simplify right side
    4,937.55x = 20,089,285.09
  5. Step 5: Solve for x
    x = 20,089,285.09/4,937.55
  6. Step 6: Final answer
    x = 4,068.67

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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.