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Finding the Fourth Proportional to 43,845.64, 65,760.78 and 14,259.16

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Solution

The fourth proportional to 43,845.64, 65,760.78 and 14,259.16 is: 21,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,845.64 : 65,760.78 = 14,259.16 : x
  2. Step 2: Convert to fraction form
    43,845.64/65,760.78 = 14,259.16/x
  3. Step 3: Cross multiply
    43,845.64x = 65,760.78 × 14,259.16
  4. Step 4: Simplify right side
    43,845.64x = 937,693,483.74
  5. Step 5: Solve for x
    x = 937,693,483.74/43,845.64
  6. Step 6: Final answer
    x = 21,386.24

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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.