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Finding the Fourth Proportional to 25,920.99, 35,772.13 and 14,594.38

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Solution

The fourth proportional to 25,920.99, 35,772.13 and 14,594.38 is: 20,140.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920.99 : 35,772.13 = 14,594.38 : x
  2. Step 2: Convert to fraction form
    25,920.99/35,772.13 = 14,594.38/x
  3. Step 3: Cross multiply
    25,920.99x = 35,772.13 × 14,594.38
  4. Step 4: Simplify right side
    25,920.99x = 522,072,058.63
  5. Step 5: Solve for x
    x = 522,072,058.63/25,920.99
  6. Step 6: Final answer
    x = 20,140.90

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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.