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Finding the Fourth Proportional to 37,476.60, 51,717.72 and 20,709.60

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Solution

The fourth proportional to 37,476.60, 51,717.72 and 20,709.60 is: 28,579.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,476.60 : 51,717.72 = 20,709.60 : x
  2. Step 2: Convert to fraction form
    37,476.60/51,717.72 = 20,709.60/x
  3. Step 3: Cross multiply
    37,476.60x = 51,717.72 × 20,709.60
  4. Step 4: Simplify right side
    37,476.60x = 1,071,053,294.11
  5. Step 5: Solve for x
    x = 1,071,053,294.11/37,476.60
  6. Step 6: Final answer
    x = 28,579.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.