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Finding the Fourth Proportional to 12,946.41, 19,390.41 and 9,068.13

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Solution

The fourth proportional to 12,946.41, 19,390.41 and 9,068.13 is: 13,581.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.41 : 19,390.41 = 9,068.13 : x
  2. Step 2: Convert to fraction form
    12,946.41/19,390.41 = 9,068.13/x
  3. Step 3: Cross multiply
    12,946.41x = 19,390.41 × 9,068.13
  4. Step 4: Simplify right side
    12,946.41x = 175,834,758.63
  5. Step 5: Solve for x
    x = 175,834,758.63/12,946.41
  6. Step 6: Final answer
    x = 13,581.74

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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.