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Finding the Fourth Proportional to 9,390.40, 12,962.64 and 6,033.40

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Solution

The fourth proportional to 9,390.40, 12,962.64 and 6,033.40 is: 8,328.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.40 : 12,962.64 = 6,033.40 : x
  2. Step 2: Convert to fraction form
    9,390.40/12,962.64 = 6,033.40/x
  3. Step 3: Cross multiply
    9,390.40x = 12,962.64 × 6,033.40
  4. Step 4: Simplify right side
    9,390.40x = 78,208,792.18
  5. Step 5: Solve for x
    x = 78,208,792.18/9,390.40
  6. Step 6: Final answer
    x = 8,328.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.