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Finding the Fourth Proportional to 4,808.60, 7,212.24 and 1,888.95

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Solution

The fourth proportional to 4,808.60, 7,212.24 and 1,888.95 is: 2,833.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,808.60 : 7,212.24 = 1,888.95 : x
  2. Step 2: Convert to fraction form
    4,808.60/7,212.24 = 1,888.95/x
  3. Step 3: Cross multiply
    4,808.60x = 7,212.24 × 1,888.95
  4. Step 4: Simplify right side
    4,808.60x = 13,623,560.75
  5. Step 5: Solve for x
    x = 13,623,560.75/4,808.60
  6. Step 6: Final answer
    x = 2,833.17

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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.