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Finding the Fourth Proportional to 56,393.61, 77,925.83 and 53,660.67

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Solution

The fourth proportional to 56,393.61, 77,925.83 and 53,660.67 is: 74,149.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,393.61 : 77,925.83 = 53,660.67 : x
  2. Step 2: Convert to fraction form
    56,393.61/77,925.83 = 53,660.67/x
  3. Step 3: Cross multiply
    56,393.61x = 77,925.83 × 53,660.67
  4. Step 4: Simplify right side
    56,393.61x = 4,181,551,979.80
  5. Step 5: Solve for x
    x = 4,181,551,979.80/56,393.61
  6. Step 6: Final answer
    x = 74,149.39

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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.