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Finding the Fourth Proportional to 27,030.61, 40,539.39 and 12,029.61

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Solution

The fourth proportional to 27,030.61, 40,539.39 and 12,029.61 is: 18,041.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,030.61 : 40,539.39 = 12,029.61 : x
  2. Step 2: Convert to fraction form
    27,030.61/40,539.39 = 12,029.61/x
  3. Step 3: Cross multiply
    27,030.61x = 40,539.39 × 12,029.61
  4. Step 4: Simplify right side
    27,030.61x = 487,673,158.25
  5. Step 5: Solve for x
    x = 487,673,158.25/27,030.61
  6. Step 6: Final answer
    x = 18,041.51

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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.