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Finding the Fourth Proportional to 9,432.60, 14,124.60 and 7,488.60

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Solution

The fourth proportional to 9,432.60, 14,124.60 and 7,488.60 is: 11,213.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,432.60 : 14,124.60 = 7,488.60 : x
  2. Step 2: Convert to fraction form
    9,432.60/14,124.60 = 7,488.60/x
  3. Step 3: Cross multiply
    9,432.60x = 14,124.60 × 7,488.60
  4. Step 4: Simplify right side
    9,432.60x = 105,773,479.56
  5. Step 5: Solve for x
    x = 105,773,479.56/9,432.60
  6. Step 6: Final answer
    x = 11,213.61

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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.