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Finding the Fourth Proportional to 10,445.68, 15,671.22 and 4,897.99

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Solution

The fourth proportional to 10,445.68, 15,671.22 and 4,897.99 is: 7,348.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.68 : 15,671.22 = 4,897.99 : x
  2. Step 2: Convert to fraction form
    10,445.68/15,671.22 = 4,897.99/x
  3. Step 3: Cross multiply
    10,445.68x = 15,671.22 × 4,897.99
  4. Step 4: Simplify right side
    10,445.68x = 76,757,478.85
  5. Step 5: Solve for x
    x = 76,757,478.85/10,445.68
  6. Step 6: Final answer
    x = 7,348.25

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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.