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Finding the Fourth Proportional to 25,780.50, 35,577.09 and 14,602.50

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Solution

The fourth proportional to 25,780.50, 35,577.09 and 14,602.50 is: 20,151.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,780.50 : 35,577.09 = 14,602.50 : x
  2. Step 2: Convert to fraction form
    25,780.50/35,577.09 = 14,602.50/x
  3. Step 3: Cross multiply
    25,780.50x = 35,577.09 × 14,602.50
  4. Step 4: Simplify right side
    25,780.50x = 519,514,456.73
  5. Step 5: Solve for x
    x = 519,514,456.73/25,780.50
  6. Step 6: Final answer
    x = 20,151.45

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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.