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Finding the Fourth Proportional to 9,250.40, 12,765.56 and 6,602.40

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Solution

The fourth proportional to 9,250.40, 12,765.56 and 6,602.40 is: 9,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,250.40 : 12,765.56 = 6,602.40 : x
  2. Step 2: Convert to fraction form
    9,250.40/12,765.56 = 6,602.40/x
  3. Step 3: Cross multiply
    9,250.40x = 12,765.56 × 6,602.40
  4. Step 4: Simplify right side
    9,250.40x = 84,283,333.34
  5. Step 5: Solve for x
    x = 84,283,333.34/9,250.40
  6. Step 6: Final answer
    x = 9,111.32

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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.