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Finding the Fourth Proportional to 70,527.60, 97,321.80 and 40,306.92

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Solution

The fourth proportional to 70,527.60, 97,321.80 and 40,306.92 is: 55,619.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,527.60 : 97,321.80 = 40,306.92 : x
  2. Step 2: Convert to fraction form
    70,527.60/97,321.80 = 40,306.92/x
  3. Step 3: Cross multiply
    70,527.60x = 97,321.80 × 40,306.92
  4. Step 4: Simplify right side
    70,527.60x = 3,922,742,006.86
  5. Step 5: Solve for x
    x = 3,922,742,006.86/70,527.60
  6. Step 6: Final answer
    x = 55,619.96

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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.