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Finding the Fourth Proportional to 9,662.61, 13,334.04 and 5,470.86

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Solution

The fourth proportional to 9,662.61, 13,334.04 and 5,470.86 is: 7,549.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,662.61 : 13,334.04 = 5,470.86 : x
  2. Step 2: Convert to fraction form
    9,662.61/13,334.04 = 5,470.86/x
  3. Step 3: Cross multiply
    9,662.61x = 13,334.04 × 5,470.86
  4. Step 4: Simplify right side
    9,662.61x = 72,948,666.07
  5. Step 5: Solve for x
    x = 72,948,666.07/9,662.61
  6. Step 6: Final answer
    x = 7,549.58

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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.