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Finding the Fourth Proportional to 70,584.20, 97,409.70 and 38,752.84

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Solution

The fourth proportional to 70,584.20, 97,409.70 and 38,752.84 is: 53,480.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,584.20 : 97,409.70 = 38,752.84 : x
  2. Step 2: Convert to fraction form
    70,584.20/97,409.70 = 38,752.84/x
  3. Step 3: Cross multiply
    70,584.20x = 97,409.70 × 38,752.84
  4. Step 4: Simplify right side
    70,584.20x = 3,774,902,518.55
  5. Step 5: Solve for x
    x = 3,774,902,518.55/70,584.20
  6. Step 6: Final answer
    x = 53,480.84

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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.