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Finding the Fourth Proportional to 29,624.64, 40,878.04 and 19,028.64

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Solution

The fourth proportional to 29,624.64, 40,878.04 and 19,028.64 is: 26,256.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,624.64 : 40,878.04 = 19,028.64 : x
  2. Step 2: Convert to fraction form
    29,624.64/40,878.04 = 19,028.64/x
  3. Step 3: Cross multiply
    29,624.64x = 40,878.04 × 19,028.64
  4. Step 4: Simplify right side
    29,624.64x = 777,853,507.07
  5. Step 5: Solve for x
    x = 777,853,507.07/29,624.64
  6. Step 6: Final answer
    x = 26,256.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.