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Finding the Fourth Proportional to 32,490.65, 44,840.10 and 19,740.89

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Solution

The fourth proportional to 32,490.65, 44,840.10 and 19,740.89 is: 27,244.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,490.65 : 44,840.10 = 19,740.89 : x
  2. Step 2: Convert to fraction form
    32,490.65/44,840.10 = 19,740.89/x
  3. Step 3: Cross multiply
    32,490.65x = 44,840.10 × 19,740.89
  4. Step 4: Simplify right side
    32,490.65x = 885,183,499.67
  5. Step 5: Solve for x
    x = 885,183,499.67/32,490.65
  6. Step 6: Final answer
    x = 27,244.26

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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.