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Finding the Fourth Proportional to 64,368.82, 88,735.92 and 45,190.21

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Solution

The fourth proportional to 64,368.82, 88,735.92 and 45,190.21 is: 62,297.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,368.82 : 88,735.92 = 45,190.21 : x
  2. Step 2: Convert to fraction form
    64,368.82/88,735.92 = 45,190.21/x
  3. Step 3: Cross multiply
    64,368.82x = 88,735.92 × 45,190.21
  4. Step 4: Simplify right side
    64,368.82x = 4,009,994,859.34
  5. Step 5: Solve for x
    x = 4,009,994,859.34/64,368.82
  6. Step 6: Final answer
    x = 62,297.16

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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.