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Finding the Fourth Proportional to 25,303.88, 37,929.36 and 8,658.32

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Solution

The fourth proportional to 25,303.88, 37,929.36 and 8,658.32 is: 12,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,303.88 : 37,929.36 = 8,658.32 : x
  2. Step 2: Convert to fraction form
    25,303.88/37,929.36 = 8,658.32/x
  3. Step 3: Cross multiply
    25,303.88x = 37,929.36 × 8,658.32
  4. Step 4: Simplify right side
    25,303.88x = 328,404,536.28
  5. Step 5: Solve for x
    x = 328,404,536.28/25,303.88
  6. Step 6: Final answer
    x = 12,978.43

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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.