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Finding the Fourth Proportional to 51,900.76, 77,853.08 and 18,160.20

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Solution

The fourth proportional to 51,900.76, 77,853.08 and 18,160.20 is: 27,240.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,900.76 : 77,853.08 = 18,160.20 : x
  2. Step 2: Convert to fraction form
    51,900.76/77,853.08 = 18,160.20/x
  3. Step 3: Cross multiply
    51,900.76x = 77,853.08 × 18,160.20
  4. Step 4: Simplify right side
    51,900.76x = 1,413,827,503.42
  5. Step 5: Solve for x
    x = 1,413,827,503.42/51,900.76
  6. Step 6: Final answer
    x = 27,240.98

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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.