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Finding the Fourth Proportional to 70,166.64, 96,825.34 and 39,955.06

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Solution

The fourth proportional to 70,166.64, 96,825.34 and 39,955.06 is: 55,135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,166.64 : 96,825.34 = 39,955.06 : x
  2. Step 2: Convert to fraction form
    70,166.64/96,825.34 = 39,955.06/x
  3. Step 3: Cross multiply
    70,166.64x = 96,825.34 × 39,955.06
  4. Step 4: Simplify right side
    70,166.64x = 3,868,662,269.22
  5. Step 5: Solve for x
    x = 3,868,662,269.22/70,166.64
  6. Step 6: Final answer
    x = 55,135.35

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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.