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Finding the Fourth Proportional to 53,655, 74,043.90 and 29,785.53

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Solution

The fourth proportional to 53,655, 74,043.90 and 29,785.53 is: 41,104.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,655 : 74,043.90 = 29,785.53 : x
  2. Step 2: Convert to fraction form
    53,655/74,043.90 = 29,785.53/x
  3. Step 3: Cross multiply
    53,655x = 74,043.90 × 29,785.53
  4. Step 4: Simplify right side
    53,655x = 2,205,436,804.77
  5. Step 5: Solve for x
    x = 2,205,436,804.77/53,655
  6. Step 6: Final answer
    x = 41,104.03

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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.