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Finding the Fourth Proportional to 46,689.41, 70,045.97 and 13,411.78

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Solution

The fourth proportional to 46,689.41, 70,045.97 and 13,411.78 is: 20,121.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,689.41 : 70,045.97 = 13,411.78 : x
  2. Step 2: Convert to fraction form
    46,689.41/70,045.97 = 13,411.78/x
  3. Step 3: Cross multiply
    46,689.41x = 70,045.97 × 13,411.78
  4. Step 4: Simplify right side
    46,689.41x = 939,440,897.35
  5. Step 5: Solve for x
    x = 939,440,897.35/46,689.41
  6. Step 6: Final answer
    x = 20,121.07

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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.