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Finding the Fourth Proportional to 9,114.60, 13,671.90 and 6,335.40

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Solution

The fourth proportional to 9,114.60, 13,671.90 and 6,335.40 is: 9,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,114.60 : 13,671.90 = 6,335.40 : x
  2. Step 2: Convert to fraction form
    9,114.60/13,671.90 = 6,335.40/x
  3. Step 3: Cross multiply
    9,114.60x = 13,671.90 × 6,335.40
  4. Step 4: Simplify right side
    9,114.60x = 86,616,955.26
  5. Step 5: Solve for x
    x = 86,616,955.26/9,114.60
  6. Step 6: Final answer
    x = 9,503.10

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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.