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Finding the Fourth Proportional to 59,351.60, 89,027.40 and 19,899.20

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Solution

The fourth proportional to 59,351.60, 89,027.40 and 19,899.20 is: 29,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,351.60 : 89,027.40 = 19,899.20 : x
  2. Step 2: Convert to fraction form
    59,351.60/89,027.40 = 19,899.20/x
  3. Step 3: Cross multiply
    59,351.60x = 89,027.40 × 19,899.20
  4. Step 4: Simplify right side
    59,351.60x = 1,771,574,038.08
  5. Step 5: Solve for x
    x = 1,771,574,038.08/59,351.60
  6. Step 6: Final answer
    x = 29,848.80

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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.