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Finding the Fourth Proportional to 14,707.80, 20,301.30 and 9,044.28

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Solution

The fourth proportional to 14,707.80, 20,301.30 and 9,044.28 is: 12,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,707.80 : 20,301.30 = 9,044.28 : x
  2. Step 2: Convert to fraction form
    14,707.80/20,301.30 = 9,044.28/x
  3. Step 3: Cross multiply
    14,707.80x = 20,301.30 × 9,044.28
  4. Step 4: Simplify right side
    14,707.80x = 183,610,641.56
  5. Step 5: Solve for x
    x = 183,610,641.56/14,707.80
  6. Step 6: Final answer
    x = 12,483.90

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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.