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Finding the Fourth Proportional to 25,776.36, 38,664.18 and 7,308.36

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Solution

The fourth proportional to 25,776.36, 38,664.18 and 7,308.36 is: 10,962.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,776.36 : 38,664.18 = 7,308.36 : x
  2. Step 2: Convert to fraction form
    25,776.36/38,664.18 = 7,308.36/x
  3. Step 3: Cross multiply
    25,776.36x = 38,664.18 × 7,308.36
  4. Step 4: Simplify right side
    25,776.36x = 282,571,746.54
  5. Step 5: Solve for x
    x = 282,571,746.54/25,776.36
  6. Step 6: Final answer
    x = 10,962.44

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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.