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Finding the Fourth Proportional to 62,689.42, 86,509.82 and 35,093.70

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Solution

The fourth proportional to 62,689.42, 86,509.82 and 35,093.70 is: 48,428.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,689.42 : 86,509.82 = 35,093.70 : x
  2. Step 2: Convert to fraction form
    62,689.42/86,509.82 = 35,093.70/x
  3. Step 3: Cross multiply
    62,689.42x = 86,509.82 × 35,093.70
  4. Step 4: Simplify right side
    62,689.42x = 3,035,949,670.13
  5. Step 5: Solve for x
    x = 3,035,949,670.13/62,689.42
  6. Step 6: Final answer
    x = 48,428.42

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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.