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Finding the Fourth Proportional to 4,617.60, 6,921.60 and 2,307.84

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Solution

The fourth proportional to 4,617.60, 6,921.60 and 2,307.84 is: 3,459.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,617.60 : 6,921.60 = 2,307.84 : x
  2. Step 2: Convert to fraction form
    4,617.60/6,921.60 = 2,307.84/x
  3. Step 3: Cross multiply
    4,617.60x = 6,921.60 × 2,307.84
  4. Step 4: Simplify right side
    4,617.60x = 15,973,945.34
  5. Step 5: Solve for x
    x = 15,973,945.34/4,617.60
  6. Step 6: Final answer
    x = 3,459.36

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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.