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Finding the Fourth Proportional to 70,019.04, 96,624 and 38,188.56

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Solution

The fourth proportional to 70,019.04, 96,624 and 38,188.56 is: 52,698.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,019.04 : 96,624 = 38,188.56 : x
  2. Step 2: Convert to fraction form
    70,019.04/96,624 = 38,188.56/x
  3. Step 3: Cross multiply
    70,019.04x = 96,624 × 38,188.56
  4. Step 4: Simplify right side
    70,019.04x = 3,689,931,421.44
  5. Step 5: Solve for x
    x = 3,689,931,421.44/70,019.04
  6. Step 6: Final answer
    x = 52,698.97

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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.