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Finding the Fourth Proportional to 8,862.65, 12,232.53 and 5,507.99

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Solution

The fourth proportional to 8,862.65, 12,232.53 and 5,507.99 is: 7,602.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.65 : 12,232.53 = 5,507.99 : x
  2. Step 2: Convert to fraction form
    8,862.65/12,232.53 = 5,507.99/x
  3. Step 3: Cross multiply
    8,862.65x = 12,232.53 × 5,507.99
  4. Step 4: Simplify right side
    8,862.65x = 67,376,591.75
  5. Step 5: Solve for x
    x = 67,376,591.75/8,862.65
  6. Step 6: Final answer
    x = 7,602.31

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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.