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Finding the Fourth Proportional to 12,356.70, 18,535.05 and 4,564.62

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Solution

The fourth proportional to 12,356.70, 18,535.05 and 4,564.62 is: 6,846.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.70 : 18,535.05 = 4,564.62 : x
  2. Step 2: Convert to fraction form
    12,356.70/18,535.05 = 4,564.62/x
  3. Step 3: Cross multiply
    12,356.70x = 18,535.05 × 4,564.62
  4. Step 4: Simplify right side
    12,356.70x = 84,605,459.93
  5. Step 5: Solve for x
    x = 84,605,459.93/12,356.70
  6. Step 6: Final answer
    x = 6,846.93

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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.