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Finding the Fourth Proportional to 30,780.68, 46,154.58 and 15,974.68

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Solution

The fourth proportional to 30,780.68, 46,154.58 and 15,974.68 is: 23,953.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,780.68 : 46,154.58 = 15,974.68 : x
  2. Step 2: Convert to fraction form
    30,780.68/46,154.58 = 15,974.68/x
  3. Step 3: Cross multiply
    30,780.68x = 46,154.58 × 15,974.68
  4. Step 4: Simplify right side
    30,780.68x = 737,304,646.03
  5. Step 5: Solve for x
    x = 737,304,646.03/30,780.68
  6. Step 6: Final answer
    x = 23,953.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.