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Finding the Fourth Proportional to 56,465.96, 84,681.60 and 39,047.72

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Solution

The fourth proportional to 56,465.96, 84,681.60 and 39,047.72 is: 58,559.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,465.96 : 84,681.60 = 39,047.72 : x
  2. Step 2: Convert to fraction form
    56,465.96/84,681.60 = 39,047.72/x
  3. Step 3: Cross multiply
    56,465.96x = 84,681.60 × 39,047.72
  4. Step 4: Simplify right side
    56,465.96x = 3,306,623,405.95
  5. Step 5: Solve for x
    x = 3,306,623,405.95/56,465.96
  6. Step 6: Final answer
    x = 58,559.59

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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.