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Finding the Fourth Proportional to 53,661.75, 74,055.63 and 29,788.75

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Solution

The fourth proportional to 53,661.75, 74,055.63 and 29,788.75 is: 41,109.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,661.75 : 74,055.63 = 29,788.75 : x
  2. Step 2: Convert to fraction form
    53,661.75/74,055.63 = 29,788.75/x
  3. Step 3: Cross multiply
    53,661.75x = 74,055.63 × 29,788.75
  4. Step 4: Simplify right side
    53,661.75x = 2,206,024,648.16
  5. Step 5: Solve for x
    x = 2,206,024,648.16/53,661.75
  6. Step 6: Final answer
    x = 41,109.82

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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.