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Finding the Fourth Proportional to 30,572.62, 45,854.20 and 12,562.67

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Solution

The fourth proportional to 30,572.62, 45,854.20 and 12,562.67 is: 18,842.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,572.62 : 45,854.20 = 12,562.67 : x
  2. Step 2: Convert to fraction form
    30,572.62/45,854.20 = 12,562.67/x
  3. Step 3: Cross multiply
    30,572.62x = 45,854.20 × 12,562.67
  4. Step 4: Simplify right side
    30,572.62x = 576,051,182.71
  5. Step 5: Solve for x
    x = 576,051,182.71/30,572.62
  6. Step 6: Final answer
    x = 18,842.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.