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Finding the Fourth Proportional to 14,937.40, 22,406.10 and 9,407.80

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Solution

The fourth proportional to 14,937.40, 22,406.10 and 9,407.80 is: 14,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,937.40 : 22,406.10 = 9,407.80 : x
  2. Step 2: Convert to fraction form
    14,937.40/22,406.10 = 9,407.80/x
  3. Step 3: Cross multiply
    14,937.40x = 22,406.10 × 9,407.80
  4. Step 4: Simplify right side
    14,937.40x = 210,792,107.58
  5. Step 5: Solve for x
    x = 210,792,107.58/14,937.40
  6. Step 6: Final answer
    x = 14,111.70

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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.