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Finding the Fourth Proportional to 15,123.40, 22,685.10 and 4,593.40

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Solution

The fourth proportional to 15,123.40, 22,685.10 and 4,593.40 is: 6,890.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123.40 : 22,685.10 = 4,593.40 : x
  2. Step 2: Convert to fraction form
    15,123.40/22,685.10 = 4,593.40/x
  3. Step 3: Cross multiply
    15,123.40x = 22,685.10 × 4,593.40
  4. Step 4: Simplify right side
    15,123.40x = 104,201,738.34
  5. Step 5: Solve for x
    x = 104,201,738.34/15,123.40
  6. Step 6: Final answer
    x = 6,890.10

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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.