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Finding the Fourth Proportional to 55,258.57, 76,256.84 and 30,108.07

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Solution

The fourth proportional to 55,258.57, 76,256.84 and 30,108.07 is: 41,549.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,258.57 : 76,256.84 = 30,108.07 : x
  2. Step 2: Convert to fraction form
    55,258.57/76,256.84 = 30,108.07/x
  3. Step 3: Cross multiply
    55,258.57x = 76,256.84 × 30,108.07
  4. Step 4: Simplify right side
    55,258.57x = 2,295,945,935.52
  5. Step 5: Solve for x
    x = 2,295,945,935.52/55,258.57
  6. Step 6: Final answer
    x = 41,549.14

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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.