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Finding the Fourth Proportional to 4,699.55, 6,480.90 and 2,810.82

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Solution

The fourth proportional to 4,699.55, 6,480.90 and 2,810.82 is: 3,876.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,699.55 : 6,480.90 = 2,810.82 : x
  2. Step 2: Convert to fraction form
    4,699.55/6,480.90 = 2,810.82/x
  3. Step 3: Cross multiply
    4,699.55x = 6,480.90 × 2,810.82
  4. Step 4: Simplify right side
    4,699.55x = 18,216,643.34
  5. Step 5: Solve for x
    x = 18,216,643.34/4,699.55
  6. Step 6: Final answer
    x = 3,876.25

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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.