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Finding the Fourth Proportional to 22,888.80, 34,300.80 and 20,102.40

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Solution

The fourth proportional to 22,888.80, 34,300.80 and 20,102.40 is: 30,125.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,888.80 : 34,300.80 = 20,102.40 : x
  2. Step 2: Convert to fraction form
    22,888.80/34,300.80 = 20,102.40/x
  3. Step 3: Cross multiply
    22,888.80x = 34,300.80 × 20,102.40
  4. Step 4: Simplify right side
    22,888.80x = 689,528,401.92
  5. Step 5: Solve for x
    x = 689,528,401.92/22,888.80
  6. Step 6: Final answer
    x = 30,125.14

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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.