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Finding the Fourth Proportional to 10,497.90, 14,489.55 and 7,358.70

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Solution

The fourth proportional to 10,497.90, 14,489.55 and 7,358.70 is: 10,156.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,497.90 : 14,489.55 = 7,358.70 : x
  2. Step 2: Convert to fraction form
    10,497.90/14,489.55 = 7,358.70/x
  3. Step 3: Cross multiply
    10,497.90x = 14,489.55 × 7,358.70
  4. Step 4: Simplify right side
    10,497.90x = 106,624,251.59
  5. Step 5: Solve for x
    x = 106,624,251.59/10,497.90
  6. Step 6: Final answer
    x = 10,156.72

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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.