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Finding the Fourth Proportional to 8,934.64, 12,330.48 and 4,955.72

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Solution

The fourth proportional to 8,934.64, 12,330.48 and 4,955.72 is: 6,839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,934.64 : 12,330.48 = 4,955.72 : x
  2. Step 2: Convert to fraction form
    8,934.64/12,330.48 = 4,955.72/x
  3. Step 3: Cross multiply
    8,934.64x = 12,330.48 × 4,955.72
  4. Step 4: Simplify right side
    8,934.64x = 61,106,406.35
  5. Step 5: Solve for x
    x = 61,106,406.35/8,934.64
  6. Step 6: Final answer
    x = 6,839.27

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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.