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Finding the Fourth Proportional to 53,458.65, 73,780.74 and 30,793.23

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Solution

The fourth proportional to 53,458.65, 73,780.74 and 30,793.23 is: 42,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,458.65 : 73,780.74 = 30,793.23 : x
  2. Step 2: Convert to fraction form
    53,458.65/73,780.74 = 30,793.23/x
  3. Step 3: Cross multiply
    53,458.65x = 73,780.74 × 30,793.23
  4. Step 4: Simplify right side
    53,458.65x = 2,271,947,296.39
  5. Step 5: Solve for x
    x = 2,271,947,296.39/53,458.65
  6. Step 6: Final answer
    x = 42,499.15

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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.