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Finding the Fourth Proportional to 8,340.49, 11,506.80 and 4,803

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Solution

The fourth proportional to 8,340.49, 11,506.80 and 4,803 is: 6,626.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.49 : 11,506.80 = 4,803 : x
  2. Step 2: Convert to fraction form
    8,340.49/11,506.80 = 4,803/x
  3. Step 3: Cross multiply
    8,340.49x = 11,506.80 × 4,803
  4. Step 4: Simplify right side
    8,340.49x = 55,267,160.40
  5. Step 5: Solve for x
    x = 55,267,160.40/8,340.49
  6. Step 6: Final answer
    x = 6,626.37

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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.