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Finding the Fourth Proportional to 29,987.64, 44,981.52 and 7,800.98

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Solution

The fourth proportional to 29,987.64, 44,981.52 and 7,800.98 is: 11,701.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,987.64 : 44,981.52 = 7,800.98 : x
  2. Step 2: Convert to fraction form
    29,987.64/44,981.52 = 7,800.98/x
  3. Step 3: Cross multiply
    29,987.64x = 44,981.52 × 7,800.98
  4. Step 4: Simplify right side
    29,987.64x = 350,899,990.32
  5. Step 5: Solve for x
    x = 350,899,990.32/29,987.64
  6. Step 6: Final answer
    x = 11,701.49

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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.