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Finding the Fourth Proportional to 58,909.20, 88,363.80 and 30,818.40

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Solution

The fourth proportional to 58,909.20, 88,363.80 and 30,818.40 is: 46,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,909.20 : 88,363.80 = 30,818.40 : x
  2. Step 2: Convert to fraction form
    58,909.20/88,363.80 = 30,818.40/x
  3. Step 3: Cross multiply
    58,909.20x = 88,363.80 × 30,818.40
  4. Step 4: Simplify right side
    58,909.20x = 2,723,230,933.92
  5. Step 5: Solve for x
    x = 2,723,230,933.92/58,909.20
  6. Step 6: Final answer
    x = 46,227.60

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1.5x scale

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.