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Finding the Fourth Proportional to 14,959.70, 20,637.16 and 9,292.64

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Solution

The fourth proportional to 14,959.70, 20,637.16 and 9,292.64 is: 12,819.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,959.70 : 20,637.16 = 9,292.64 : x
  2. Step 2: Convert to fraction form
    14,959.70/20,637.16 = 9,292.64/x
  3. Step 3: Cross multiply
    14,959.70x = 20,637.16 × 9,292.64
  4. Step 4: Simplify right side
    14,959.70x = 191,773,698.50
  5. Step 5: Solve for x
    x = 191,773,698.50/14,959.70
  6. Step 6: Final answer
    x = 12,819.35

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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.