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Finding the Fourth Proportional to 9,432.60, 14,148.90 and 8,525.40

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Solution

The fourth proportional to 9,432.60, 14,148.90 and 8,525.40 is: 12,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,432.60 : 14,148.90 = 8,525.40 : x
  2. Step 2: Convert to fraction form
    9,432.60/14,148.90 = 8,525.40/x
  3. Step 3: Cross multiply
    9,432.60x = 14,148.90 × 8,525.40
  4. Step 4: Simplify right side
    9,432.60x = 120,625,032.06
  5. Step 5: Solve for x
    x = 120,625,032.06/9,432.60
  6. Step 6: Final answer
    x = 12,788.10

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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.