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Finding the Fourth Proportional to 59,788.32, 89,681.64 and 20,372.94

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Solution

The fourth proportional to 59,788.32, 89,681.64 and 20,372.94 is: 30,559.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,788.32 : 89,681.64 = 20,372.94 : x
  2. Step 2: Convert to fraction form
    59,788.32/89,681.64 = 20,372.94/x
  3. Step 3: Cross multiply
    59,788.32x = 89,681.64 × 20,372.94
  4. Step 4: Simplify right side
    59,788.32x = 1,827,078,670.82
  5. Step 5: Solve for x
    x = 1,827,078,670.82/59,788.32
  6. Step 6: Final answer
    x = 30,559.12

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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.