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Finding the Fourth Proportional to 70,952.10, 97,812.14 and 55,818.46

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Solution

The fourth proportional to 70,952.10, 97,812.14 and 55,818.46 is: 76,949.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,952.10 : 97,812.14 = 55,818.46 : x
  2. Step 2: Convert to fraction form
    70,952.10/97,812.14 = 55,818.46/x
  3. Step 3: Cross multiply
    70,952.10x = 97,812.14 × 55,818.46
  4. Step 4: Simplify right side
    70,952.10x = 5,459,722,867.28
  5. Step 5: Solve for x
    x = 5,459,722,867.28/70,952.10
  6. Step 6: Final answer
    x = 76,949.42

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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.