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Finding the Fourth Proportional to 15,451.51, 22,978.48 and 14,959.43

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Solution

The fourth proportional to 15,451.51, 22,978.48 and 14,959.43 is: 22,246.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.51 : 22,978.48 = 14,959.43 : x
  2. Step 2: Convert to fraction form
    15,451.51/22,978.48 = 14,959.43/x
  3. Step 3: Cross multiply
    15,451.51x = 22,978.48 × 14,959.43
  4. Step 4: Simplify right side
    15,451.51x = 343,744,963.07
  5. Step 5: Solve for x
    x = 343,744,963.07/15,451.51
  6. Step 6: Final answer
    x = 22,246.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.