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Finding the Fourth Proportional to 35,264.64, 48,657.60 and 20,352

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Solution

The fourth proportional to 35,264.64, 48,657.60 and 20,352 is: 28,081.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,264.64 : 48,657.60 = 20,352 : x
  2. Step 2: Convert to fraction form
    35,264.64/48,657.60 = 20,352/x
  3. Step 3: Cross multiply
    35,264.64x = 48,657.60 × 20,352
  4. Step 4: Simplify right side
    35,264.64x = 990,279,475.20
  5. Step 5: Solve for x
    x = 990,279,475.20/35,264.64
  6. Step 6: Final answer
    x = 28,081.37

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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.