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Finding the Fourth Proportional to 9,854.64, 13,599.45 and 5,662.89

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Solution

The fourth proportional to 9,854.64, 13,599.45 and 5,662.89 is: 7,814.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,854.64 : 13,599.45 = 5,662.89 : x
  2. Step 2: Convert to fraction form
    9,854.64/13,599.45 = 5,662.89/x
  3. Step 3: Cross multiply
    9,854.64x = 13,599.45 × 5,662.89
  4. Step 4: Simplify right side
    9,854.64x = 77,012,189.41
  5. Step 5: Solve for x
    x = 77,012,189.41/9,854.64
  6. Step 6: Final answer
    x = 7,814.82

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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.