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Finding the Fourth Proportional to 43,887.93, 65,838.38 and 12,719.13

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Solution

The fourth proportional to 43,887.93, 65,838.38 and 12,719.13 is: 19,080.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,887.93 : 65,838.38 = 12,719.13 : x
  2. Step 2: Convert to fraction form
    43,887.93/65,838.38 = 12,719.13/x
  3. Step 3: Cross multiply
    43,887.93x = 65,838.38 × 12,719.13
  4. Step 4: Simplify right side
    43,887.93x = 837,406,850.61
  5. Step 5: Solve for x
    x = 837,406,850.61/43,887.93
  6. Step 6: Final answer
    x = 19,080.57

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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.