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Finding the Fourth Proportional to 65,114.34, 89,875.33 and 38,274.84

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Solution

The fourth proportional to 65,114.34, 89,875.33 and 38,274.84 is: 52,829.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,114.34 : 89,875.33 = 38,274.84 : x
  2. Step 2: Convert to fraction form
    65,114.34/89,875.33 = 38,274.84/x
  3. Step 3: Cross multiply
    65,114.34x = 89,875.33 × 38,274.84
  4. Step 4: Simplify right side
    65,114.34x = 3,439,963,330.63
  5. Step 5: Solve for x
    x = 3,439,963,330.63/65,114.34
  6. Step 6: Final answer
    x = 52,829.59

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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.