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Finding the Fourth Proportional to 29,398.40, 44,088.60 and 9,672.40

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Solution

The fourth proportional to 29,398.40, 44,088.60 and 9,672.40 is: 14,505.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,398.40 : 44,088.60 = 9,672.40 : x
  2. Step 2: Convert to fraction form
    29,398.40/44,088.60 = 9,672.40/x
  3. Step 3: Cross multiply
    29,398.40x = 44,088.60 × 9,672.40
  4. Step 4: Simplify right side
    29,398.40x = 426,442,574.64
  5. Step 5: Solve for x
    x = 426,442,574.64/29,398.40
  6. Step 6: Final answer
    x = 14,505.64

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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.