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Finding the Fourth Proportional to 55,277.70, 82,916.55 and 18,341.70

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Solution

The fourth proportional to 55,277.70, 82,916.55 and 18,341.70 is: 27,512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,277.70 : 82,916.55 = 18,341.70 : x
  2. Step 2: Convert to fraction form
    55,277.70/82,916.55 = 18,341.70/x
  3. Step 3: Cross multiply
    55,277.70x = 82,916.55 × 18,341.70
  4. Step 4: Simplify right side
    55,277.70x = 1,520,830,485.14
  5. Step 5: Solve for x
    x = 1,520,830,485.14/55,277.70
  6. Step 6: Final answer
    x = 27,512.55

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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.