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Finding the Fourth Proportional to 14,973.71, 20,677.01 and 9,318.15

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Solution

The fourth proportional to 14,973.71, 20,677.01 and 9,318.15 is: 12,867.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,973.71 : 20,677.01 = 9,318.15 : x
  2. Step 2: Convert to fraction form
    14,973.71/20,677.01 = 9,318.15/x
  3. Step 3: Cross multiply
    14,973.71x = 20,677.01 × 9,318.15
  4. Step 4: Simplify right side
    14,973.71x = 192,671,434.14
  5. Step 5: Solve for x
    x = 192,671,434.14/14,973.71
  6. Step 6: Final answer
    x = 12,867.32

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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.