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Finding the Fourth Proportional to 25,820.95, 38,719.90 and 7,348.63

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Solution

The fourth proportional to 25,820.95, 38,719.90 and 7,348.63 is: 11,019.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,820.95 : 38,719.90 = 7,348.63 : x
  2. Step 2: Convert to fraction form
    25,820.95/38,719.90 = 7,348.63/x
  3. Step 3: Cross multiply
    25,820.95x = 38,719.90 × 7,348.63
  4. Step 4: Simplify right side
    25,820.95x = 284,538,218.74
  5. Step 5: Solve for x
    x = 284,538,218.74/25,820.95
  6. Step 6: Final answer
    x = 11,019.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.