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Finding the Fourth Proportional to 54,809.13, 75,636.80 and 29,658.63

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Solution

The fourth proportional to 54,809.13, 75,636.80 and 29,658.63 is: 40,929.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,809.13 : 75,636.80 = 29,658.63 : x
  2. Step 2: Convert to fraction form
    54,809.13/75,636.80 = 29,658.63/x
  3. Step 3: Cross multiply
    54,809.13x = 75,636.80 × 29,658.63
  4. Step 4: Simplify right side
    54,809.13x = 2,243,283,865.58
  5. Step 5: Solve for x
    x = 2,243,283,865.58/54,809.13
  6. Step 6: Final answer
    x = 40,929.02

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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.