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Finding the Fourth Proportional to 70,395.82, 97,148.64 and 38,564.70

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Solution

The fourth proportional to 70,395.82, 97,148.64 and 38,564.70 is: 53,220.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,395.82 : 97,148.64 = 38,564.70 : x
  2. Step 2: Convert to fraction form
    70,395.82/97,148.64 = 38,564.70/x
  3. Step 3: Cross multiply
    70,395.82x = 97,148.64 × 38,564.70
  4. Step 4: Simplify right side
    70,395.82x = 3,746,508,157.01
  5. Step 5: Solve for x
    x = 3,746,508,157.01/70,395.82
  6. Step 6: Final answer
    x = 53,220.61

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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.