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Finding the Fourth Proportional to 43,649.88, 65,483.93 and 14,070.70

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Solution

The fourth proportional to 43,649.88, 65,483.93 and 14,070.70 is: 21,108.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,649.88 : 65,483.93 = 14,070.70 : x
  2. Step 2: Convert to fraction form
    43,649.88/65,483.93 = 14,070.70/x
  3. Step 3: Cross multiply
    43,649.88x = 65,483.93 × 14,070.70
  4. Step 4: Simplify right side
    43,649.88x = 921,404,733.85
  5. Step 5: Solve for x
    x = 921,404,733.85/43,649.88
  6. Step 6: Final answer
    x = 21,108.99

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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.