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Finding the Fourth Proportional to 56,859.63, 78,465.42 and 32,990.42

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Solution

The fourth proportional to 56,859.63, 78,465.42 and 32,990.42 is: 45,526.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,859.63 : 78,465.42 = 32,990.42 : x
  2. Step 2: Convert to fraction form
    56,859.63/78,465.42 = 32,990.42/x
  3. Step 3: Cross multiply
    56,859.63x = 78,465.42 × 32,990.42
  4. Step 4: Simplify right side
    56,859.63x = 2,588,606,768.95
  5. Step 5: Solve for x
    x = 2,588,606,768.95/56,859.63
  6. Step 6: Final answer
    x = 45,526.27

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1.5x scale

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.