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Finding the Fourth Proportional to 10,624.95, 15,948.16 and 4,388.67

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Solution

The fourth proportional to 10,624.95, 15,948.16 and 4,388.67 is: 6,587.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,624.95 : 15,948.16 = 4,388.67 : x
  2. Step 2: Convert to fraction form
    10,624.95/15,948.16 = 4,388.67/x
  3. Step 3: Cross multiply
    10,624.95x = 15,948.16 × 4,388.67
  4. Step 4: Simplify right side
    10,624.95x = 69,991,200.38
  5. Step 5: Solve for x
    x = 69,991,200.38/10,624.95
  6. Step 6: Final answer
    x = 6,587.44

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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.