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Finding the Fourth Proportional to 62,980.44, 86,916.66 and 36,122.76

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Solution

The fourth proportional to 62,980.44, 86,916.66 and 36,122.76 is: 49,851.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,980.44 : 86,916.66 = 36,122.76 : x
  2. Step 2: Convert to fraction form
    62,980.44/86,916.66 = 36,122.76/x
  3. Step 3: Cross multiply
    62,980.44x = 86,916.66 × 36,122.76
  4. Step 4: Simplify right side
    62,980.44x = 3,139,669,649.18
  5. Step 5: Solve for x
    x = 3,139,669,649.18/62,980.44
  6. Step 6: Final answer
    x = 49,851.50

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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.