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Finding the Fourth Proportional to 10,737.84, 14,808.60 and 8,470.56

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Solution

The fourth proportional to 10,737.84, 14,808.60 and 8,470.56 is: 11,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,737.84 : 14,808.60 = 8,470.56 : x
  2. Step 2: Convert to fraction form
    10,737.84/14,808.60 = 8,470.56/x
  3. Step 3: Cross multiply
    10,737.84x = 14,808.60 × 8,470.56
  4. Step 4: Simplify right side
    10,737.84x = 125,437,134.82
  5. Step 5: Solve for x
    x = 125,437,134.82/10,737.84
  6. Step 6: Final answer
    x = 11,681.78

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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.