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Finding the Fourth Proportional to 15,439.68, 23,169.24 and 9,607.68

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Solution

The fourth proportional to 15,439.68, 23,169.24 and 9,607.68 is: 14,417.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,439.68 : 23,169.24 = 9,607.68 : x
  2. Step 2: Convert to fraction form
    15,439.68/23,169.24 = 9,607.68/x
  3. Step 3: Cross multiply
    15,439.68x = 23,169.24 × 9,607.68
  4. Step 4: Simplify right side
    15,439.68x = 222,602,643.76
  5. Step 5: Solve for x
    x = 222,602,643.76/15,439.68
  6. Step 6: Final answer
    x = 14,417.57

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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.