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Finding the Fourth Proportional to 56,355.40, 84,533.10 and 14,235.40

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Solution

The fourth proportional to 56,355.40, 84,533.10 and 14,235.40 is: 21,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,355.40 : 84,533.10 = 14,235.40 : x
  2. Step 2: Convert to fraction form
    56,355.40/84,533.10 = 14,235.40/x
  3. Step 3: Cross multiply
    56,355.40x = 84,533.10 × 14,235.40
  4. Step 4: Simplify right side
    56,355.40x = 1,203,362,491.74
  5. Step 5: Solve for x
    x = 1,203,362,491.74/56,355.40
  6. Step 6: Final answer
    x = 21,353.10

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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.