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Finding the Fourth Proportional to 64,631.32, 89,192.01 and 36,337.01

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Solution

The fourth proportional to 64,631.32, 89,192.01 and 36,337.01 is: 50,145.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,631.32 : 89,192.01 = 36,337.01 : x
  2. Step 2: Convert to fraction form
    64,631.32/89,192.01 = 36,337.01/x
  3. Step 3: Cross multiply
    64,631.32x = 89,192.01 × 36,337.01
  4. Step 4: Simplify right side
    64,631.32x = 3,240,970,547.40
  5. Step 5: Solve for x
    x = 3,240,970,547.40/64,631.32
  6. Step 6: Final answer
    x = 50,145.51

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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.