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Finding the Fourth Proportional to 16,391.60, 24,587.40 and 9,368.90

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Solution

The fourth proportional to 16,391.60, 24,587.40 and 9,368.90 is: 14,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.60 : 24,587.40 = 9,368.90 : x
  2. Step 2: Convert to fraction form
    16,391.60/24,587.40 = 9,368.90/x
  3. Step 3: Cross multiply
    16,391.60x = 24,587.40 × 9,368.90
  4. Step 4: Simplify right side
    16,391.60x = 230,356,891.86
  5. Step 5: Solve for x
    x = 230,356,891.86/16,391.60
  6. Step 6: Final answer
    x = 14,053.35

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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.