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Finding the Fourth Proportional to 1,666.84, 2,300.45 and 968.22

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Solution

The fourth proportional to 1,666.84, 2,300.45 and 968.22 is: 1,336.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.84 : 2,300.45 = 968.22 : x
  2. Step 2: Convert to fraction form
    1,666.84/2,300.45 = 968.22/x
  3. Step 3: Cross multiply
    1,666.84x = 2,300.45 × 968.22
  4. Step 4: Simplify right side
    1,666.84x = 2,227,341.70
  5. Step 5: Solve for x
    x = 2,227,341.70/1,666.84
  6. Step 6: Final answer
    x = 1,336.27

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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.