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Finding the Fourth Proportional to 15,123.89, 22,690.45 and 7,733.54

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Solution

The fourth proportional to 15,123.89, 22,690.45 and 7,733.54 is: 11,602.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123.89 : 22,690.45 = 7,733.54 : x
  2. Step 2: Convert to fraction form
    15,123.89/22,690.45 = 7,733.54/x
  3. Step 3: Cross multiply
    15,123.89x = 22,690.45 × 7,733.54
  4. Step 4: Simplify right side
    15,123.89x = 175,477,502.69
  5. Step 5: Solve for x
    x = 175,477,502.69/15,123.89
  6. Step 6: Final answer
    x = 11,602.67

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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.