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Finding the Fourth Proportional to 10,800.68, 14,904.78 and 6,326.75

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Solution

The fourth proportional to 10,800.68, 14,904.78 and 6,326.75 is: 8,730.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,800.68 : 14,904.78 = 6,326.75 : x
  2. Step 2: Convert to fraction form
    10,800.68/14,904.78 = 6,326.75/x
  3. Step 3: Cross multiply
    10,800.68x = 14,904.78 × 6,326.75
  4. Step 4: Simplify right side
    10,800.68x = 94,298,742.34
  5. Step 5: Solve for x
    x = 94,298,742.34/10,800.68
  6. Step 6: Final answer
    x = 8,730.82

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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.