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Finding the Fourth Proportional to 9,958.79, 14,931.20 and 4,409.13

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Solution

The fourth proportional to 9,958.79, 14,931.20 and 4,409.13 is: 6,610.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,958.79 : 14,931.20 = 4,409.13 : x
  2. Step 2: Convert to fraction form
    9,958.79/14,931.20 = 4,409.13/x
  3. Step 3: Cross multiply
    9,958.79x = 14,931.20 × 4,409.13
  4. Step 4: Simplify right side
    9,958.79x = 65,833,601.86
  5. Step 5: Solve for x
    x = 65,833,601.86/9,958.79
  6. Step 6: Final answer
    x = 6,610.60

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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.