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Finding the Fourth Proportional to 50,689.02, 69,947.28 and 28,024.32

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Solution

The fourth proportional to 50,689.02, 69,947.28 and 28,024.32 is: 38,671.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,689.02 : 69,947.28 = 28,024.32 : x
  2. Step 2: Convert to fraction form
    50,689.02/69,947.28 = 28,024.32/x
  3. Step 3: Cross multiply
    50,689.02x = 69,947.28 × 28,024.32
  4. Step 4: Simplify right side
    50,689.02x = 1,960,224,957.85
  5. Step 5: Solve for x
    x = 1,960,224,957.85/50,689.02
  6. Step 6: Final answer
    x = 38,671.59

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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.