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Finding the Fourth Proportional to 65,613.38, 98,440.79 and 49,893.71

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Solution

The fourth proportional to 65,613.38, 98,440.79 and 49,893.71 is: 74,856.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,613.38 : 98,440.79 = 49,893.71 : x
  2. Step 2: Convert to fraction form
    65,613.38/98,440.79 = 49,893.71/x
  3. Step 3: Cross multiply
    65,613.38x = 98,440.79 × 49,893.71
  4. Step 4: Simplify right side
    65,613.38x = 4,911,575,486.76
  5. Step 5: Solve for x
    x = 4,911,575,486.76/65,613.38
  6. Step 6: Final answer
    x = 74,856.32

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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.