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Finding the Fourth Proportional to 14,655.71, 20,224.41 and 8,368.09

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Solution

The fourth proportional to 14,655.71, 20,224.41 and 8,368.09 is: 11,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,655.71 : 20,224.41 = 8,368.09 : x
  2. Step 2: Convert to fraction form
    14,655.71/20,224.41 = 8,368.09/x
  3. Step 3: Cross multiply
    14,655.71x = 20,224.41 × 8,368.09
  4. Step 4: Simplify right side
    14,655.71x = 169,239,683.08
  5. Step 5: Solve for x
    x = 169,239,683.08/14,655.71
  6. Step 6: Final answer
    x = 11,547.70

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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.