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Finding the Fourth Proportional to 48,795.91, 72,840.67 and 42,891.01

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Solution

The fourth proportional to 48,795.91, 72,840.67 and 42,891.01 is: 64,026.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,795.91 : 72,840.67 = 42,891.01 : x
  2. Step 2: Convert to fraction form
    48,795.91/72,840.67 = 42,891.01/x
  3. Step 3: Cross multiply
    48,795.91x = 72,840.67 × 42,891.01
  4. Step 4: Simplify right side
    48,795.91x = 3,124,209,905.38
  5. Step 5: Solve for x
    x = 3,124,209,905.38/48,795.91
  6. Step 6: Final answer
    x = 64,026.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.