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Finding the Fourth Proportional to 30,047.94, 45,074.34 and 10,326.51

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Solution

The fourth proportional to 30,047.94, 45,074.34 and 10,326.51 is: 15,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,047.94 : 45,074.34 = 10,326.51 : x
  2. Step 2: Convert to fraction form
    30,047.94/45,074.34 = 10,326.51/x
  3. Step 3: Cross multiply
    30,047.94x = 45,074.34 × 10,326.51
  4. Step 4: Simplify right side
    30,047.94x = 465,460,622.75
  5. Step 5: Solve for x
    x = 465,460,622.75/30,047.94
  6. Step 6: Final answer
    x = 15,490.60

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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.