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Finding the Fourth Proportional to 3,167.60, 4,751.40 and 946.51

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Solution

The fourth proportional to 3,167.60, 4,751.40 and 946.51 is: 1,419.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.60 : 4,751.40 = 946.51 : x
  2. Step 2: Convert to fraction form
    3,167.60/4,751.40 = 946.51/x
  3. Step 3: Cross multiply
    3,167.60x = 4,751.40 × 946.51
  4. Step 4: Simplify right side
    3,167.60x = 4,497,247.61
  5. Step 5: Solve for x
    x = 4,497,247.61/3,167.60
  6. Step 6: Final answer
    x = 1,419.77

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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.