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Finding the Fourth Proportional to 6,632.47, 9,988.20 and 5,777.11

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Solution

The fourth proportional to 6,632.47, 9,988.20 and 5,777.11 is: 8,700.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,632.47 : 9,988.20 = 5,777.11 : x
  2. Step 2: Convert to fraction form
    6,632.47/9,988.20 = 5,777.11/x
  3. Step 3: Cross multiply
    6,632.47x = 9,988.20 × 5,777.11
  4. Step 4: Simplify right side
    6,632.47x = 57,702,930.10
  5. Step 5: Solve for x
    x = 57,702,930.10/6,632.47
  6. Step 6: Final answer
    x = 8,700.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.