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Finding the Fourth Proportional to 9,277.17, 12,795.03 and 8,155.71

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Solution

The fourth proportional to 9,277.17, 12,795.03 and 8,155.71 is: 11,248.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,277.17 : 12,795.03 = 8,155.71 : x
  2. Step 2: Convert to fraction form
    9,277.17/12,795.03 = 8,155.71/x
  3. Step 3: Cross multiply
    9,277.17x = 12,795.03 × 8,155.71
  4. Step 4: Simplify right side
    9,277.17x = 104,352,554.12
  5. Step 5: Solve for x
    x = 104,352,554.12/9,277.17
  6. Step 6: Final answer
    x = 11,248.32

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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.