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Finding the Fourth Proportional to 56,373.96, 77,793.97 and 30,880.53

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Solution

The fourth proportional to 56,373.96, 77,793.97 and 30,880.53 is: 42,613.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,373.96 : 77,793.97 = 30,880.53 : x
  2. Step 2: Convert to fraction form
    56,373.96/77,793.97 = 30,880.53/x
  3. Step 3: Cross multiply
    56,373.96x = 77,793.97 × 30,880.53
  4. Step 4: Simplify right side
    56,373.96x = 2,402,319,024.40
  5. Step 5: Solve for x
    x = 2,402,319,024.40/56,373.96
  6. Step 6: Final answer
    x = 42,613.98

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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.