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Finding the Fourth Proportional to 8,928.12, 13,326.99 and 8,277.68

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Solution

The fourth proportional to 8,928.12, 13,326.99 and 8,277.68 is: 12,356.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.12 : 13,326.99 = 8,277.68 : x
  2. Step 2: Convert to fraction form
    8,928.12/13,326.99 = 8,277.68/x
  3. Step 3: Cross multiply
    8,928.12x = 13,326.99 × 8,277.68
  4. Step 4: Simplify right side
    8,928.12x = 110,316,600.32
  5. Step 5: Solve for x
    x = 110,316,600.32/8,928.12
  6. Step 6: Final answer
    x = 12,356.08

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.