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Finding the Fourth Proportional to 53,929.80, 80,894.70 and 49,264.20

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Solution

The fourth proportional to 53,929.80, 80,894.70 and 49,264.20 is: 73,896.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,929.80 : 80,894.70 = 49,264.20 : x
  2. Step 2: Convert to fraction form
    53,929.80/80,894.70 = 49,264.20/x
  3. Step 3: Cross multiply
    53,929.80x = 80,894.70 × 49,264.20
  4. Step 4: Simplify right side
    53,929.80x = 3,985,212,679.74
  5. Step 5: Solve for x
    x = 3,985,212,679.74/53,929.80
  6. Step 6: Final answer
    x = 73,896.30

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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.