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Finding the Fourth Proportional to 85,544.93, 128,248.07 and 35,662.43

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Solution

The fourth proportional to 85,544.93, 128,248.07 and 35,662.43 is: 53,464.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,544.93 : 128,248.07 = 35,662.43 : x
  2. Step 2: Convert to fraction form
    85,544.93/128,248.07 = 35,662.43/x
  3. Step 3: Cross multiply
    85,544.93x = 128,248.07 × 35,662.43
  4. Step 4: Simplify right side
    85,544.93x = 4,573,636,999.46
  5. Step 5: Solve for x
    x = 4,573,636,999.46/85,544.93
  6. Step 6: Final answer
    x = 53,464.74

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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.