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Finding the Fourth Proportional to 15,750.76, 21,737.70 and 9,037

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Solution

The fourth proportional to 15,750.76, 21,737.70 and 9,037 is: 12,472.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.76 : 21,737.70 = 9,037 : x
  2. Step 2: Convert to fraction form
    15,750.76/21,737.70 = 9,037/x
  3. Step 3: Cross multiply
    15,750.76x = 21,737.70 × 9,037
  4. Step 4: Simplify right side
    15,750.76x = 196,443,594.90
  5. Step 5: Solve for x
    x = 196,443,594.90/15,750.76
  6. Step 6: Final answer
    x = 12,472.01

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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.