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Finding the Fourth Proportional to 2,768.51, 3,820.53 and 1,526.51

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Solution

The fourth proportional to 2,768.51, 3,820.53 and 1,526.51 is: 2,106.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.51 : 3,820.53 = 1,526.51 : x
  2. Step 2: Convert to fraction form
    2,768.51/3,820.53 = 1,526.51/x
  3. Step 3: Cross multiply
    2,768.51x = 3,820.53 × 1,526.51
  4. Step 4: Simplify right side
    2,768.51x = 5,832,077.25
  5. Step 5: Solve for x
    x = 5,832,077.25/2,768.51
  6. Step 6: Final answer
    x = 2,106.58

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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.