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Finding the Fourth Proportional to 2,154.95, 2,973.06 and 1,409.34

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Solution

The fourth proportional to 2,154.95, 2,973.06 and 1,409.34 is: 1,944.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.95 : 2,973.06 = 1,409.34 : x
  2. Step 2: Convert to fraction form
    2,154.95/2,973.06 = 1,409.34/x
  3. Step 3: Cross multiply
    2,154.95x = 2,973.06 × 1,409.34
  4. Step 4: Simplify right side
    2,154.95x = 4,190,052.38
  5. Step 5: Solve for x
    x = 4,190,052.38/2,154.95
  6. Step 6: Final answer
    x = 1,944.38

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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.