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Finding the Fourth Proportional to 84,615.68, 116,760 and 46,880.32

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Solution

The fourth proportional to 84,615.68, 116,760 and 46,880.32 is: 64,689.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,615.68 : 116,760 = 46,880.32 : x
  2. Step 2: Convert to fraction form
    84,615.68/116,760 = 46,880.32/x
  3. Step 3: Cross multiply
    84,615.68x = 116,760 × 46,880.32
  4. Step 4: Simplify right side
    84,615.68x = 5,473,746,163.20
  5. Step 5: Solve for x
    x = 5,473,746,163.20/84,615.68
  6. Step 6: Final answer
    x = 64,689.50

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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.