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Finding the Fourth Proportional to 9,277.80, 12,788.82 and 7,030.68

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Solution

The fourth proportional to 9,277.80, 12,788.82 and 7,030.68 is: 9,691.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,277.80 : 12,788.82 = 7,030.68 : x
  2. Step 2: Convert to fraction form
    9,277.80/12,788.82 = 7,030.68/x
  3. Step 3: Cross multiply
    9,277.80x = 12,788.82 × 7,030.68
  4. Step 4: Simplify right side
    9,277.80x = 89,914,101.00
  5. Step 5: Solve for x
    x = 89,914,101.00/9,277.80
  6. Step 6: Final answer
    x = 9,691.32

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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.