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Finding the Fourth Proportional to 5,336.80, 8,045.23 and 4,980.00

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Solution

The fourth proportional to 5,336.80, 8,045.23 and 4,980.00 is: 7,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,336.80 : 8,045.23 = 4,980.00 : x
  2. Step 2: Convert to fraction form
    5,336.80/8,045.23 = 4,980.00/x
  3. Step 3: Cross multiply
    5,336.80x = 8,045.23 × 4,980.00
  4. Step 4: Simplify right side
    5,336.80x = 40,065,205.17
  5. Step 5: Solve for x
    x = 40,065,205.17/5,336.80
  6. Step 6: Final answer
    x = 7,507.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.