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Finding the Fourth Proportional to 64,703.60, 89,292.94 and 35,237.28

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Solution

The fourth proportional to 64,703.60, 89,292.94 and 35,237.28 is: 48,628.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,703.60 : 89,292.94 = 35,237.28 : x
  2. Step 2: Convert to fraction form
    64,703.60/89,292.94 = 35,237.28/x
  3. Step 3: Cross multiply
    64,703.60x = 89,292.94 × 35,237.28
  4. Step 4: Simplify right side
    64,703.60x = 3,146,440,073.29
  5. Step 5: Solve for x
    x = 3,146,440,073.29/64,703.60
  6. Step 6: Final answer
    x = 48,628.52

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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.