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Finding the Fourth Proportional to 3,165.06, 4,747.05 and 973.20

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Solution

The fourth proportional to 3,165.06, 4,747.05 and 973.20 is: 1,459.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.06 : 4,747.05 = 973.20 : x
  2. Step 2: Convert to fraction form
    3,165.06/4,747.05 = 973.20/x
  3. Step 3: Cross multiply
    3,165.06x = 4,747.05 × 973.20
  4. Step 4: Simplify right side
    3,165.06x = 4,619,829.06
  5. Step 5: Solve for x
    x = 4,619,829.06/3,165.06
  6. Step 6: Final answer
    x = 1,459.63

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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.