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Finding the Fourth Proportional to 5,283.03, 7,283.98 and 3,865.58

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Solution

The fourth proportional to 5,283.03, 7,283.98 and 3,865.58 is: 5,329.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.03 : 7,283.98 = 3,865.58 : x
  2. Step 2: Convert to fraction form
    5,283.03/7,283.98 = 3,865.58/x
  3. Step 3: Cross multiply
    5,283.03x = 7,283.98 × 3,865.58
  4. Step 4: Simplify right side
    5,283.03x = 28,156,807.41
  5. Step 5: Solve for x
    x = 28,156,807.41/5,283.03
  6. Step 6: Final answer
    x = 5,329.67

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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.