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Finding the Fourth Proportional to 51,307.59, 76,972.92 and 18,029.95

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Solution

The fourth proportional to 51,307.59, 76,972.92 and 18,029.95 is: 27,048.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,307.59 : 76,972.92 = 18,029.95 : x
  2. Step 2: Convert to fraction form
    51,307.59/76,972.92 = 18,029.95/x
  3. Step 3: Cross multiply
    51,307.59x = 76,972.92 × 18,029.95
  4. Step 4: Simplify right side
    51,307.59x = 1,387,817,898.95
  5. Step 5: Solve for x
    x = 1,387,817,898.95/51,307.59
  6. Step 6: Final answer
    x = 27,048.98

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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.