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Finding the Fourth Proportional to 60,607.96, 90,953.42 and 21,165.08

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Solution

The fourth proportional to 60,607.96, 90,953.42 and 21,165.08 is: 31,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,607.96 : 90,953.42 = 21,165.08 : x
  2. Step 2: Convert to fraction form
    60,607.96/90,953.42 = 21,165.08/x
  3. Step 3: Cross multiply
    60,607.96x = 90,953.42 × 21,165.08
  4. Step 4: Simplify right side
    60,607.96x = 1,925,035,849.98
  5. Step 5: Solve for x
    x = 1,925,035,849.98/60,607.96
  6. Step 6: Final answer
    x = 31,762.10

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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.