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Finding the Fourth Proportional to 53,866.50, 74,335.77 and 29,668.77

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Solution

The fourth proportional to 53,866.50, 74,335.77 and 29,668.77 is: 40,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,866.50 : 74,335.77 = 29,668.77 : x
  2. Step 2: Convert to fraction form
    53,866.50/74,335.77 = 29,668.77/x
  3. Step 3: Cross multiply
    53,866.50x = 74,335.77 × 29,668.77
  4. Step 4: Simplify right side
    53,866.50x = 2,205,450,862.90
  5. Step 5: Solve for x
    x = 2,205,450,862.90/53,866.50
  6. Step 6: Final answer
    x = 40,942.90

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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.