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Finding the Fourth Proportional to 46,407.54, 63,879.84 and 40,428.84

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Solution

The fourth proportional to 46,407.54, 63,879.84 and 40,428.84 is: 55,650.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,407.54 : 63,879.84 = 40,428.84 : x
  2. Step 2: Convert to fraction form
    46,407.54/63,879.84 = 40,428.84/x
  3. Step 3: Cross multiply
    46,407.54x = 63,879.84 × 40,428.84
  4. Step 4: Simplify right side
    46,407.54x = 2,582,587,830.59
  5. Step 5: Solve for x
    x = 2,582,587,830.59/46,407.54
  6. Step 6: Final answer
    x = 55,650.18

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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.