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Finding the Fourth Proportional to 64,407.84, 88,888.36 and 36,118.96

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Solution

The fourth proportional to 64,407.84, 88,888.36 and 36,118.96 is: 49,847.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,407.84 : 88,888.36 = 36,118.96 : x
  2. Step 2: Convert to fraction form
    64,407.84/88,888.36 = 36,118.96/x
  3. Step 3: Cross multiply
    64,407.84x = 88,888.36 × 36,118.96
  4. Step 4: Simplify right side
    64,407.84x = 3,210,555,119.31
  5. Step 5: Solve for x
    x = 3,210,555,119.31/64,407.84
  6. Step 6: Final answer
    x = 49,847.27

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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.