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Finding the Fourth Proportional to 64,239, 88,649.84 and 35,950.16

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Solution

The fourth proportional to 64,239, 88,649.84 and 35,950.16 is: 49,611.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,239 : 88,649.84 = 35,950.16 : x
  2. Step 2: Convert to fraction form
    64,239/88,649.84 = 35,950.16/x
  3. Step 3: Cross multiply
    64,239x = 88,649.84 × 35,950.16
  4. Step 4: Simplify right side
    64,239x = 3,186,975,931.97
  5. Step 5: Solve for x
    x = 3,186,975,931.97/64,239
  6. Step 6: Final answer
    x = 49,611.23

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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.