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Finding the Fourth Proportional to 25,303.76, 37,978.77 and 12,832.38

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Solution

The fourth proportional to 25,303.76, 37,978.77 and 12,832.38 is: 19,260.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,303.76 : 37,978.77 = 12,832.38 : x
  2. Step 2: Convert to fraction form
    25,303.76/37,978.77 = 12,832.38/x
  3. Step 3: Cross multiply
    25,303.76x = 37,978.77 × 12,832.38
  4. Step 4: Simplify right side
    25,303.76x = 487,358,008.57
  5. Step 5: Solve for x
    x = 487,358,008.57/25,303.76
  6. Step 6: Final answer
    x = 19,260.30

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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.