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Finding the Fourth Proportional to 19,495.54, 29,235.07 and 7,485.74

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Solution

The fourth proportional to 19,495.54, 29,235.07 and 7,485.74 is: 11,225.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,495.54 : 29,235.07 = 7,485.74 : x
  2. Step 2: Convert to fraction form
    19,495.54/29,235.07 = 7,485.74/x
  3. Step 3: Cross multiply
    19,495.54x = 29,235.07 × 7,485.74
  4. Step 4: Simplify right side
    19,495.54x = 218,846,132.90
  5. Step 5: Solve for x
    x = 218,846,132.90/19,495.54
  6. Step 6: Final answer
    x = 11,225.45

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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.