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Finding the Fourth Proportional to 22,364.81, 30,864.95 and 14,798.09

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Solution

The fourth proportional to 22,364.81, 30,864.95 and 14,798.09 is: 20,422.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,364.81 : 30,864.95 = 14,798.09 : x
  2. Step 2: Convert to fraction form
    22,364.81/30,864.95 = 14,798.09/x
  3. Step 3: Cross multiply
    22,364.81x = 30,864.95 × 14,798.09
  4. Step 4: Simplify right side
    22,364.81x = 456,742,366.61
  5. Step 5: Solve for x
    x = 456,742,366.61/22,364.81
  6. Step 6: Final answer
    x = 20,422.37

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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.