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Finding the Fourth Proportional to 60,486.82, 90,748.66 and 30,925.40

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Solution

The fourth proportional to 60,486.82, 90,748.66 and 30,925.40 is: 46,397.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,486.82 : 90,748.66 = 30,925.40 : x
  2. Step 2: Convert to fraction form
    60,486.82/90,748.66 = 30,925.40/x
  3. Step 3: Cross multiply
    60,486.82x = 90,748.66 × 30,925.40
  4. Step 4: Simplify right side
    60,486.82x = 2,806,438,609.96
  5. Step 5: Solve for x
    x = 2,806,438,609.96/60,486.82
  6. Step 6: Final answer
    x = 46,397.52

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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.