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Finding the Fourth Proportional to 12,473.70, 18,710.55 and 12,036.30

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Solution

The fourth proportional to 12,473.70, 18,710.55 and 12,036.30 is: 18,054.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.70 : 18,710.55 = 12,036.30 : x
  2. Step 2: Convert to fraction form
    12,473.70/18,710.55 = 12,036.30/x
  3. Step 3: Cross multiply
    12,473.70x = 18,710.55 × 12,036.30
  4. Step 4: Simplify right side
    12,473.70x = 225,205,792.97
  5. Step 5: Solve for x
    x = 225,205,792.97/12,473.70
  6. Step 6: Final answer
    x = 18,054.45

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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.