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Finding the Fourth Proportional to 8,700.93, 12,015.26 and 5,562.57

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Solution

The fourth proportional to 8,700.93, 12,015.26 and 5,562.57 is: 7,681.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.93 : 12,015.26 = 5,562.57 : x
  2. Step 2: Convert to fraction form
    8,700.93/12,015.26 = 5,562.57/x
  3. Step 3: Cross multiply
    8,700.93x = 12,015.26 × 5,562.57
  4. Step 4: Simplify right side
    8,700.93x = 66,835,697.01
  5. Step 5: Solve for x
    x = 66,835,697.01/8,700.93
  6. Step 6: Final answer
    x = 7,681.44

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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.