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Finding the Fourth Proportional to 19,702.93, 27,190.19 and 10,750.51

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Solution

The fourth proportional to 19,702.93, 27,190.19 and 10,750.51 is: 14,835.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,702.93 : 27,190.19 = 10,750.51 : x
  2. Step 2: Convert to fraction form
    19,702.93/27,190.19 = 10,750.51/x
  3. Step 3: Cross multiply
    19,702.93x = 27,190.19 × 10,750.51
  4. Step 4: Simplify right side
    19,702.93x = 292,308,409.50
  5. Step 5: Solve for x
    x = 292,308,409.50/19,702.93
  6. Step 6: Final answer
    x = 14,835.78

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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.