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Finding the Fourth Proportional to 25,384.38, 35,025.57 and 16,430.64

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Solution

The fourth proportional to 25,384.38, 35,025.57 and 16,430.64 is: 22,671.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,384.38 : 35,025.57 = 16,430.64 : x
  2. Step 2: Convert to fraction form
    25,384.38/35,025.57 = 16,430.64/x
  3. Step 3: Cross multiply
    25,384.38x = 35,025.57 × 16,430.64
  4. Step 4: Simplify right side
    25,384.38x = 575,492,531.46
  5. Step 5: Solve for x
    x = 575,492,531.46/25,384.38
  6. Step 6: Final answer
    x = 22,671.13

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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.