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Finding the Fourth Proportional to 37,600.90, 56,403.02 and 20,948.31

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Solution

The fourth proportional to 37,600.90, 56,403.02 and 20,948.31 is: 31,423.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,600.90 : 56,403.02 = 20,948.31 : x
  2. Step 2: Convert to fraction form
    37,600.90/56,403.02 = 20,948.31/x
  3. Step 3: Cross multiply
    37,600.90x = 56,403.02 × 20,948.31
  4. Step 4: Simplify right side
    37,600.90x = 1,181,547,947.90
  5. Step 5: Solve for x
    x = 1,181,547,947.90/37,600.90
  6. Step 6: Final answer
    x = 31,423.40

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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.