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Finding the Fourth Proportional to 3,009.67, 4,513.15 and 929.93

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Solution

The fourth proportional to 3,009.67, 4,513.15 and 929.93 is: 1,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.67 : 4,513.15 = 929.93 : x
  2. Step 2: Convert to fraction form
    3,009.67/4,513.15 = 929.93/x
  3. Step 3: Cross multiply
    3,009.67x = 4,513.15 × 929.93
  4. Step 4: Simplify right side
    3,009.67x = 4,196,913.58
  5. Step 5: Solve for x
    x = 4,196,913.58/3,009.67
  6. Step 6: Final answer
    x = 1,394.48

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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.