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Finding the Fourth Proportional to 14,358.70, 21,483.95 and 12,901.92

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Solution

The fourth proportional to 14,358.70, 21,483.95 and 12,901.92 is: 19,304.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.70 : 21,483.95 = 12,901.92 : x
  2. Step 2: Convert to fraction form
    14,358.70/21,483.95 = 12,901.92/x
  3. Step 3: Cross multiply
    14,358.70x = 21,483.95 × 12,901.92
  4. Step 4: Simplify right side
    14,358.70x = 277,184,182.73
  5. Step 5: Solve for x
    x = 277,184,182.73/14,358.70
  6. Step 6: Final answer
    x = 19,304.26

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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.