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Finding the Fourth Proportional to 18,466.71, 25,484.28 and 10,509.67

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Solution

The fourth proportional to 18,466.71, 25,484.28 and 10,509.67 is: 14,503.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466.71 : 25,484.28 = 10,509.67 : x
  2. Step 2: Convert to fraction form
    18,466.71/25,484.28 = 10,509.67/x
  3. Step 3: Cross multiply
    18,466.71x = 25,484.28 × 10,509.67
  4. Step 4: Simplify right side
    18,466.71x = 267,831,372.99
  5. Step 5: Solve for x
    x = 267,831,372.99/18,466.71
  6. Step 6: Final answer
    x = 14,503.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.