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Finding the Fourth Proportional to 3,036.74, 4,555.12 and 956.91

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Solution

The fourth proportional to 3,036.74, 4,555.12 and 956.91 is: 1,435.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.74 : 4,555.12 = 956.91 : x
  2. Step 2: Convert to fraction form
    3,036.74/4,555.12 = 956.91/x
  3. Step 3: Cross multiply
    3,036.74x = 4,555.12 × 956.91
  4. Step 4: Simplify right side
    3,036.74x = 4,358,856.36
  5. Step 5: Solve for x
    x = 4,358,856.36/3,036.74
  6. Step 6: Final answer
    x = 1,435.37

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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.