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Finding the Fourth Proportional to 59,483.88, 89,206.16 and 20,031.20

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Solution

The fourth proportional to 59,483.88, 89,206.16 and 20,031.20 is: 30,040.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,483.88 : 89,206.16 = 20,031.20 : x
  2. Step 2: Convert to fraction form
    59,483.88/89,206.16 = 20,031.20/x
  3. Step 3: Cross multiply
    59,483.88x = 89,206.16 × 20,031.20
  4. Step 4: Simplify right side
    59,483.88x = 1,786,906,432.19
  5. Step 5: Solve for x
    x = 1,786,906,432.19/59,483.88
  6. Step 6: Final answer
    x = 30,040.18

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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.