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Finding the Fourth Proportional to 64,792.61, 89,421.08 and 36,114.89

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Solution

The fourth proportional to 64,792.61, 89,421.08 and 36,114.89 is: 49,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,792.61 : 89,421.08 = 36,114.89 : x
  2. Step 2: Convert to fraction form
    64,792.61/89,421.08 = 36,114.89/x
  3. Step 3: Cross multiply
    64,792.61x = 89,421.08 × 36,114.89
  4. Step 4: Simplify right side
    64,792.61x = 3,229,432,467.88
  5. Step 5: Solve for x
    x = 3,229,432,467.88/64,792.61
  6. Step 6: Final answer
    x = 49,842.61

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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.