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Finding the Fourth Proportional to 16,590.15, 22,901.81 and 9,878.13

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Solution

The fourth proportional to 16,590.15, 22,901.81 and 9,878.13 is: 13,636.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,590.15 : 22,901.81 = 9,878.13 : x
  2. Step 2: Convert to fraction form
    16,590.15/22,901.81 = 9,878.13/x
  3. Step 3: Cross multiply
    16,590.15x = 22,901.81 × 9,878.13
  4. Step 4: Simplify right side
    16,590.15x = 226,227,007.02
  5. Step 5: Solve for x
    x = 226,227,007.02/16,590.15
  6. Step 6: Final answer
    x = 13,636.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.