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Finding the Fourth Proportional to 64,424.15, 88,905.15 and 36,130.44

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Solution

The fourth proportional to 64,424.15, 88,905.15 and 36,130.44 is: 49,859.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,424.15 : 88,905.15 = 36,130.44 : x
  2. Step 2: Convert to fraction form
    64,424.15/88,905.15 = 36,130.44/x
  3. Step 3: Cross multiply
    64,424.15x = 88,905.15 × 36,130.44
  4. Step 4: Simplify right side
    64,424.15x = 3,212,182,187.77
  5. Step 5: Solve for x
    x = 3,212,182,187.77/64,424.15
  6. Step 6: Final answer
    x = 49,859.91

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1.5x scale

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.