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Finding the Fourth Proportional to 2,315.48, 3,473.76 and 672.06

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Solution

The fourth proportional to 2,315.48, 3,473.76 and 672.06 is: 1,008.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.48 : 3,473.76 = 672.06 : x
  2. Step 2: Convert to fraction form
    2,315.48/3,473.76 = 672.06/x
  3. Step 3: Cross multiply
    2,315.48x = 3,473.76 × 672.06
  4. Step 4: Simplify right side
    2,315.48x = 2,334,575.15
  5. Step 5: Solve for x
    x = 2,334,575.15/2,315.48
  6. Step 6: Final answer
    x = 1,008.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.