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Finding the Fourth Proportional to 2,973.86, 4,459.46 and 893.17

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Solution

The fourth proportional to 2,973.86, 4,459.46 and 893.17 is: 1,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.86 : 4,459.46 = 893.17 : x
  2. Step 2: Convert to fraction form
    2,973.86/4,459.46 = 893.17/x
  3. Step 3: Cross multiply
    2,973.86x = 4,459.46 × 893.17
  4. Step 4: Simplify right side
    2,973.86x = 3,983,057.00
  5. Step 5: Solve for x
    x = 3,983,057.00/2,973.86
  6. Step 6: Final answer
    x = 1,339.36

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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.