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Finding the Fourth Proportional to 25,490.61, 35,175.90 and 14,160.89

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Solution

The fourth proportional to 25,490.61, 35,175.90 and 14,160.89 is: 19,541.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,490.61 : 35,175.90 = 14,160.89 : x
  2. Step 2: Convert to fraction form
    25,490.61/35,175.90 = 14,160.89/x
  3. Step 3: Cross multiply
    25,490.61x = 35,175.90 × 14,160.89
  4. Step 4: Simplify right side
    25,490.61x = 498,122,050.55
  5. Step 5: Solve for x
    x = 498,122,050.55/25,490.61
  6. Step 6: Final answer
    x = 19,541.39

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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.