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Finding the Fourth Proportional to 61,678.72, 85,110.24 and 34,822.72

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Solution

The fourth proportional to 61,678.72, 85,110.24 and 34,822.72 is: 48,051.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,678.72 : 85,110.24 = 34,822.72 : x
  2. Step 2: Convert to fraction form
    61,678.72/85,110.24 = 34,822.72/x
  3. Step 3: Cross multiply
    61,678.72x = 85,110.24 × 34,822.72
  4. Step 4: Simplify right side
    61,678.72x = 2,963,770,056.65
  5. Step 5: Solve for x
    x = 2,963,770,056.65/61,678.72
  6. Step 6: Final answer
    x = 48,051.74

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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.