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Finding the Fourth Proportional to 7,160.00, 9,880.99 and 3,973.46

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Solution

The fourth proportional to 7,160.00, 9,880.99 and 3,973.46 is: 5,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.00 : 9,880.99 = 3,973.46 : x
  2. Step 2: Convert to fraction form
    7,160.00/9,880.99 = 3,973.46/x
  3. Step 3: Cross multiply
    7,160.00x = 9,880.99 × 3,973.46
  4. Step 4: Simplify right side
    7,160.00x = 39,261,659.19
  5. Step 5: Solve for x
    x = 39,261,659.19/7,160.00
  6. Step 6: Final answer
    x = 5,483.48

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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.