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Finding the Fourth Proportional to 1,666.94, 2,509.63 and 1,473.03

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Solution

The fourth proportional to 1,666.94, 2,509.63 and 1,473.03 is: 2,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.94 : 2,509.63 = 1,473.03 : x
  2. Step 2: Convert to fraction form
    1,666.94/2,509.63 = 1,473.03/x
  3. Step 3: Cross multiply
    1,666.94x = 2,509.63 × 1,473.03
  4. Step 4: Simplify right side
    1,666.94x = 3,696,756.60
  5. Step 5: Solve for x
    x = 3,696,756.60/1,666.94
  6. Step 6: Final answer
    x = 2,217.70

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.