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Finding the Fourth Proportional to 40,654.58, 55,978.70 and 35,590.46

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Solution

The fourth proportional to 40,654.58, 55,978.70 and 35,590.46 is: 49,005.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,654.58 : 55,978.70 = 35,590.46 : x
  2. Step 2: Convert to fraction form
    40,654.58/55,978.70 = 35,590.46/x
  3. Step 3: Cross multiply
    40,654.58x = 55,978.70 × 35,590.46
  4. Step 4: Simplify right side
    40,654.58x = 1,992,307,683.20
  5. Step 5: Solve for x
    x = 1,992,307,683.20/40,654.58
  6. Step 6: Final answer
    x = 49,005.74

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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.