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Finding the Fourth Proportional to 7,017.77, 9,689.22 and 5,347.76

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Solution

The fourth proportional to 7,017.77, 9,689.22 and 5,347.76 is: 7,383.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,017.77 : 9,689.22 = 5,347.76 : x
  2. Step 2: Convert to fraction form
    7,017.77/9,689.22 = 5,347.76/x
  3. Step 3: Cross multiply
    7,017.77x = 9,689.22 × 5,347.76
  4. Step 4: Simplify right side
    7,017.77x = 51,815,574.70
  5. Step 5: Solve for x
    x = 51,815,574.70/7,017.77
  6. Step 6: Final answer
    x = 7,383.48

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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.