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Finding the Fourth Proportional to 14,707.40, 22,010.70 and 8,868.20

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Solution

The fourth proportional to 14,707.40, 22,010.70 and 8,868.20 is: 13,271.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,707.40 : 22,010.70 = 8,868.20 : x
  2. Step 2: Convert to fraction form
    14,707.40/22,010.70 = 8,868.20/x
  3. Step 3: Cross multiply
    14,707.40x = 22,010.70 × 8,868.20
  4. Step 4: Simplify right side
    14,707.40x = 195,195,289.74
  5. Step 5: Solve for x
    x = 195,195,289.74/14,707.40
  6. Step 6: Final answer
    x = 13,271.91

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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.