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Finding the Fourth Proportional to 34,015.80, 51,023.70 and 25,721.40

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Solution

The fourth proportional to 34,015.80, 51,023.70 and 25,721.40 is: 38,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,015.80 : 51,023.70 = 25,721.40 : x
  2. Step 2: Convert to fraction form
    34,015.80/51,023.70 = 25,721.40/x
  3. Step 3: Cross multiply
    34,015.80x = 51,023.70 × 25,721.40
  4. Step 4: Simplify right side
    34,015.80x = 1,312,400,997.18
  5. Step 5: Solve for x
    x = 1,312,400,997.18/34,015.80
  6. Step 6: Final answer
    x = 38,582.10

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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.