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Finding the Fourth Proportional to 29,987.40, 44,894.70 and 18,323.40

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Solution

The fourth proportional to 29,987.40, 44,894.70 and 18,323.40 is: 27,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,987.40 : 44,894.70 = 18,323.40 : x
  2. Step 2: Convert to fraction form
    29,987.40/44,894.70 = 18,323.40/x
  3. Step 3: Cross multiply
    29,987.40x = 44,894.70 × 18,323.40
  4. Step 4: Simplify right side
    29,987.40x = 822,623,545.98
  5. Step 5: Solve for x
    x = 822,623,545.98/29,987.40
  6. Step 6: Final answer
    x = 27,432.31

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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.