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Finding the Fourth Proportional to 24,476.40, 36,715.80 and 12,812.40

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Solution

The fourth proportional to 24,476.40, 36,715.80 and 12,812.40 is: 19,219.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,476.40 : 36,715.80 = 12,812.40 : x
  2. Step 2: Convert to fraction form
    24,476.40/36,715.80 = 12,812.40/x
  3. Step 3: Cross multiply
    24,476.40x = 36,715.80 × 12,812.40
  4. Step 4: Simplify right side
    24,476.40x = 470,417,515.92
  5. Step 5: Solve for x
    x = 470,417,515.92/24,476.40
  6. Step 6: Final answer
    x = 19,219.23

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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.