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Finding the Fourth Proportional to 64,607.41, 96,864.34 and 20,210.10

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Solution

The fourth proportional to 64,607.41, 96,864.34 and 20,210.10 is: 30,300.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,607.41 : 96,864.34 = 20,210.10 : x
  2. Step 2: Convert to fraction form
    64,607.41/96,864.34 = 20,210.10/x
  3. Step 3: Cross multiply
    64,607.41x = 96,864.34 × 20,210.10
  4. Step 4: Simplify right side
    64,607.41x = 1,957,637,997.83
  5. Step 5: Solve for x
    x = 1,957,637,997.83/64,607.41
  6. Step 6: Final answer
    x = 30,300.52

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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.