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Finding the Fourth Proportional to 46,879.74, 70,319.93 and 19,177.74

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Solution

The fourth proportional to 46,879.74, 70,319.93 and 19,177.74 is: 28,766.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,879.74 : 70,319.93 = 19,177.74 : x
  2. Step 2: Convert to fraction form
    46,879.74/70,319.93 = 19,177.74/x
  3. Step 3: Cross multiply
    46,879.74x = 70,319.93 × 19,177.74
  4. Step 4: Simplify right side
    46,879.74x = 1,348,577,238.47
  5. Step 5: Solve for x
    x = 1,348,577,238.47/46,879.74
  6. Step 6: Final answer
    x = 28,766.74

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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.