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Finding the Fourth Proportional to 10,472.40, 15,692.80 and 9,484.56

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Solution

The fourth proportional to 10,472.40, 15,692.80 and 9,484.56 is: 14,212.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,472.40 : 15,692.80 = 9,484.56 : x
  2. Step 2: Convert to fraction form
    10,472.40/15,692.80 = 9,484.56/x
  3. Step 3: Cross multiply
    10,472.40x = 15,692.80 × 9,484.56
  4. Step 4: Simplify right side
    10,472.40x = 148,839,303.17
  5. Step 5: Solve for x
    x = 148,839,303.17/10,472.40
  6. Step 6: Final answer
    x = 14,212.53

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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.