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Finding the Fourth Proportional to 1,754.83, 2,421.60 and 968.92

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Solution

The fourth proportional to 1,754.83, 2,421.60 and 968.92 is: 1,337.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.83 : 2,421.60 = 968.92 : x
  2. Step 2: Convert to fraction form
    1,754.83/2,421.60 = 968.92/x
  3. Step 3: Cross multiply
    1,754.83x = 2,421.60 × 968.92
  4. Step 4: Simplify right side
    1,754.83x = 2,346,336.67
  5. Step 5: Solve for x
    x = 2,346,336.67/1,754.83
  6. Step 6: Final answer
    x = 1,337.07

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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.