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Finding the Fourth Proportional to 64,549.04, 89,063.11 and 39,054.77

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Solution

The fourth proportional to 64,549.04, 89,063.11 and 39,054.77 is: 53,886.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,549.04 : 89,063.11 = 39,054.77 : x
  2. Step 2: Convert to fraction form
    64,549.04/89,063.11 = 39,054.77/x
  3. Step 3: Cross multiply
    64,549.04x = 89,063.11 × 39,054.77
  4. Step 4: Simplify right side
    64,549.04x = 3,478,339,276.53
  5. Step 5: Solve for x
    x = 3,478,339,276.53/64,549.04
  6. Step 6: Final answer
    x = 53,886.77

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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.