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Finding the Fourth Proportional to 13,335.40, 20,024.70 and 9,663.40

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Solution

The fourth proportional to 13,335.40, 20,024.70 and 9,663.40 is: 14,510.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.40 : 20,024.70 = 9,663.40 : x
  2. Step 2: Convert to fraction form
    13,335.40/20,024.70 = 9,663.40/x
  3. Step 3: Cross multiply
    13,335.40x = 20,024.70 × 9,663.40
  4. Step 4: Simplify right side
    13,335.40x = 193,506,685.98
  5. Step 5: Solve for x
    x = 193,506,685.98/13,335.40
  6. Step 6: Final answer
    x = 14,510.75

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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.