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Finding the Fourth Proportional to 19,904.32, 29,859.72 and 6,755.32

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Solution

The fourth proportional to 19,904.32, 29,859.72 and 6,755.32 is: 10,134.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,904.32 : 29,859.72 = 6,755.32 : x
  2. Step 2: Convert to fraction form
    19,904.32/29,859.72 = 6,755.32/x
  3. Step 3: Cross multiply
    19,904.32x = 29,859.72 × 6,755.32
  4. Step 4: Simplify right side
    19,904.32x = 201,711,963.71
  5. Step 5: Solve for x
    x = 201,711,963.71/19,904.32
  6. Step 6: Final answer
    x = 10,134.08

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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.