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Finding the Fourth Proportional to 12,295.59, 18,443.52 and 5,720.01

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Solution

The fourth proportional to 12,295.59, 18,443.52 and 5,720.01 is: 8,580.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.59 : 18,443.52 = 5,720.01 : x
  2. Step 2: Convert to fraction form
    12,295.59/18,443.52 = 5,720.01/x
  3. Step 3: Cross multiply
    12,295.59x = 18,443.52 × 5,720.01
  4. Step 4: Simplify right side
    12,295.59x = 105,497,118.84
  5. Step 5: Solve for x
    x = 105,497,118.84/12,295.59
  6. Step 6: Final answer
    x = 8,580.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.