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Finding the Fourth Proportional to 18,060.78, 27,098.78 and 9,730.98

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Solution

The fourth proportional to 18,060.78, 27,098.78 and 9,730.98 is: 14,600.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,060.78 : 27,098.78 = 9,730.98 : x
  2. Step 2: Convert to fraction form
    18,060.78/27,098.78 = 9,730.98/x
  3. Step 3: Cross multiply
    18,060.78x = 27,098.78 × 9,730.98
  4. Step 4: Simplify right side
    18,060.78x = 263,697,762.40
  5. Step 5: Solve for x
    x = 263,697,762.40/18,060.78
  6. Step 6: Final answer
    x = 14,600.58

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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.