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Finding the Fourth Proportional to 65,880.84, 98,820.92 and 15,960.94

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Solution

The fourth proportional to 65,880.84, 98,820.92 and 15,960.94 is: 23,941.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,880.84 : 98,820.92 = 15,960.94 : x
  2. Step 2: Convert to fraction form
    65,880.84/98,820.92 = 15,960.94/x
  3. Step 3: Cross multiply
    65,880.84x = 98,820.92 × 15,960.94
  4. Step 4: Simplify right side
    65,880.84x = 1,577,274,800.76
  5. Step 5: Solve for x
    x = 1,577,274,800.76/65,880.84
  6. Step 6: Final answer
    x = 23,941.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.