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Finding the Fourth Proportional to 7,655.76, 10,564.94 and 4,343.76

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Solution

The fourth proportional to 7,655.76, 10,564.94 and 4,343.76 is: 5,994.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.76 : 10,564.94 = 4,343.76 : x
  2. Step 2: Convert to fraction form
    7,655.76/10,564.94 = 4,343.76/x
  3. Step 3: Cross multiply
    7,655.76x = 10,564.94 × 4,343.76
  4. Step 4: Simplify right side
    7,655.76x = 45,891,563.77
  5. Step 5: Solve for x
    x = 45,891,563.77/7,655.76
  6. Step 6: Final answer
    x = 5,994.38

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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.