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Finding the Fourth Proportional to 35,909.73, 53,864.60 and 9,613.80

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Solution

The fourth proportional to 35,909.73, 53,864.60 and 9,613.80 is: 14,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,909.73 : 53,864.60 = 9,613.80 : x
  2. Step 2: Convert to fraction form
    35,909.73/53,864.60 = 9,613.80/x
  3. Step 3: Cross multiply
    35,909.73x = 53,864.60 × 9,613.80
  4. Step 4: Simplify right side
    35,909.73x = 517,843,443.41
  5. Step 5: Solve for x
    x = 517,843,443.41/35,909.73
  6. Step 6: Final answer
    x = 14,420.70

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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.