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Finding the Fourth Proportional to 55,607.40, 83,411.10 and 14,054.40

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Solution

The fourth proportional to 55,607.40, 83,411.10 and 14,054.40 is: 21,081.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,607.40 : 83,411.10 = 14,054.40 : x
  2. Step 2: Convert to fraction form
    55,607.40/83,411.10 = 14,054.40/x
  3. Step 3: Cross multiply
    55,607.40x = 83,411.10 × 14,054.40
  4. Step 4: Simplify right side
    55,607.40x = 1,172,292,963.84
  5. Step 5: Solve for x
    x = 1,172,292,963.84/55,607.40
  6. Step 6: Final answer
    x = 21,081.60

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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.