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Finding the Fourth Proportional to 25,459.49, 35,133.17 and 14,129.48

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Solution

The fourth proportional to 25,459.49, 35,133.17 and 14,129.48 is: 19,498.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,459.49 : 35,133.17 = 14,129.48 : x
  2. Step 2: Convert to fraction form
    25,459.49/35,133.17 = 14,129.48/x
  3. Step 3: Cross multiply
    25,459.49x = 35,133.17 × 14,129.48
  4. Step 4: Simplify right side
    25,459.49x = 496,413,176.54
  5. Step 5: Solve for x
    x = 496,413,176.54/25,459.49
  6. Step 6: Final answer
    x = 19,498.16

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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.