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Finding the Fourth Proportional to 74,792.34, 112,155.63 and 28,012.41

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Solution

The fourth proportional to 74,792.34, 112,155.63 and 28,012.41 is: 42,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,792.34 : 112,155.63 = 28,012.41 : x
  2. Step 2: Convert to fraction form
    74,792.34/112,155.63 = 28,012.41/x
  3. Step 3: Cross multiply
    74,792.34x = 112,155.63 × 28,012.41
  4. Step 4: Simplify right side
    74,792.34x = 3,141,749,491.37
  5. Step 5: Solve for x
    x = 3,141,749,491.37/74,792.34
  6. Step 6: Final answer
    x = 42,006.30

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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.