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Finding the Fourth Proportional to 63,030.65, 86,981.12 and 34,350.53

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Solution

The fourth proportional to 63,030.65, 86,981.12 and 34,350.53 is: 47,403.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,030.65 : 86,981.12 = 34,350.53 : x
  2. Step 2: Convert to fraction form
    63,030.65/86,981.12 = 34,350.53/x
  3. Step 3: Cross multiply
    63,030.65x = 86,981.12 × 34,350.53
  4. Step 4: Simplify right side
    63,030.65x = 2,987,846,965.34
  5. Step 5: Solve for x
    x = 2,987,846,965.34/63,030.65
  6. Step 6: Final answer
    x = 47,403.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.