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Finding the Fourth Proportional to 55,706.81, 76,905.26 and 43,025.63

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Solution

The fourth proportional to 55,706.81, 76,905.26 and 43,025.63 is: 59,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,706.81 : 76,905.26 = 43,025.63 : x
  2. Step 2: Convert to fraction form
    55,706.81/76,905.26 = 43,025.63/x
  3. Step 3: Cross multiply
    55,706.81x = 76,905.26 × 43,025.63
  4. Step 4: Simplify right side
    55,706.81x = 3,308,896,823.51
  5. Step 5: Solve for x
    x = 3,308,896,823.51/55,706.81
  6. Step 6: Final answer
    x = 59,398.43

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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.