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Finding the Fourth Proportional to 70,164.88, 96,827.52 and 39,948.64

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Solution

The fourth proportional to 70,164.88, 96,827.52 and 39,948.64 is: 55,129.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,164.88 : 96,827.52 = 39,948.64 : x
  2. Step 2: Convert to fraction form
    70,164.88/96,827.52 = 39,948.64/x
  3. Step 3: Cross multiply
    70,164.88x = 96,827.52 × 39,948.64
  4. Step 4: Simplify right side
    70,164.88x = 3,868,127,738.57
  5. Step 5: Solve for x
    x = 3,868,127,738.57/70,164.88
  6. Step 6: Final answer
    x = 55,129.12

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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.