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Finding the Fourth Proportional to 5,154.00, 7,113.02 and 3,719.55

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Solution

The fourth proportional to 5,154.00, 7,113.02 and 3,719.55 is: 5,133.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.00 : 7,113.02 = 3,719.55 : x
  2. Step 2: Convert to fraction form
    5,154.00/7,113.02 = 3,719.55/x
  3. Step 3: Cross multiply
    5,154.00x = 7,113.02 × 3,719.55
  4. Step 4: Simplify right side
    5,154.00x = 26,457,212.98
  5. Step 5: Solve for x
    x = 26,457,212.98/5,154.00
  6. Step 6: Final answer
    x = 5,133.34

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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.