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Finding the Fourth Proportional to 3,074.48, 4,242.48 and 1,748.16

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Solution

The fourth proportional to 3,074.48, 4,242.48 and 1,748.16 is: 2,412.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.48 : 4,242.48 = 1,748.16 : x
  2. Step 2: Convert to fraction form
    3,074.48/4,242.48 = 1,748.16/x
  3. Step 3: Cross multiply
    3,074.48x = 4,242.48 × 1,748.16
  4. Step 4: Simplify right side
    3,074.48x = 7,416,533.84
  5. Step 5: Solve for x
    x = 7,416,533.84/3,074.48
  6. Step 6: Final answer
    x = 2,412.29

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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.