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Finding the Fourth Proportional to 8,335.60, 12,503.40 and 6,148.60

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Solution

The fourth proportional to 8,335.60, 12,503.40 and 6,148.60 is: 9,222.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.60 : 12,503.40 = 6,148.60 : x
  2. Step 2: Convert to fraction form
    8,335.60/12,503.40 = 6,148.60/x
  3. Step 3: Cross multiply
    8,335.60x = 12,503.40 × 6,148.60
  4. Step 4: Simplify right side
    8,335.60x = 76,878,405.24
  5. Step 5: Solve for x
    x = 76,878,405.24/8,335.60
  6. Step 6: Final answer
    x = 9,222.90

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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.