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Finding the Fourth Proportional to 3,401.01, 4,693.43 and 1,888.67

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Solution

The fourth proportional to 3,401.01, 4,693.43 and 1,888.67 is: 2,606.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,401.01 : 4,693.43 = 1,888.67 : x
  2. Step 2: Convert to fraction form
    3,401.01/4,693.43 = 1,888.67/x
  3. Step 3: Cross multiply
    3,401.01x = 4,693.43 × 1,888.67
  4. Step 4: Simplify right side
    3,401.01x = 8,864,307.53
  5. Step 5: Solve for x
    x = 8,864,307.53/3,401.01
  6. Step 6: Final answer
    x = 2,606.38

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Half scale
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Double scale
Find fourth proportional to 3,402.01, 4,694.81 and 1,889.67
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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.