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Finding the Fourth Proportional to 5,349.42, 7,384.25 and 4,788.90

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Solution

The fourth proportional to 5,349.42, 7,384.25 and 4,788.90 is: 6,610.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,349.42 : 7,384.25 = 4,788.90 : x
  2. Step 2: Convert to fraction form
    5,349.42/7,384.25 = 4,788.90/x
  3. Step 3: Cross multiply
    5,349.42x = 7,384.25 × 4,788.90
  4. Step 4: Simplify right side
    5,349.42x = 35,362,434.83
  5. Step 5: Solve for x
    x = 35,362,434.83/5,349.42
  6. Step 6: Final answer
    x = 6,610.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.