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Finding the Fourth Proportional to 30,572.76, 45,866.07 and 10,851.33

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Solution

The fourth proportional to 30,572.76, 45,866.07 and 10,851.33 is: 16,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,572.76 : 45,866.07 = 10,851.33 : x
  2. Step 2: Convert to fraction form
    30,572.76/45,866.07 = 10,851.33/x
  3. Step 3: Cross multiply
    30,572.76x = 45,866.07 × 10,851.33
  4. Step 4: Simplify right side
    30,572.76x = 497,707,861.37
  5. Step 5: Solve for x
    x = 497,707,861.37/30,572.76
  6. Step 6: Final answer
    x = 16,279.45

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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.