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Finding the Fourth Proportional to 25,195.47, 37,807.81 and 12,716.47

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Solution

The fourth proportional to 25,195.47, 37,807.81 and 12,716.47 is: 19,082.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,195.47 : 37,807.81 = 12,716.47 : x
  2. Step 2: Convert to fraction form
    25,195.47/37,807.81 = 12,716.47/x
  3. Step 3: Cross multiply
    25,195.47x = 37,807.81 × 12,716.47
  4. Step 4: Simplify right side
    25,195.47x = 480,781,881.63
  5. Step 5: Solve for x
    x = 480,781,881.63/25,195.47
  6. Step 6: Final answer
    x = 19,082.08

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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.