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Finding the Fourth Proportional to 56,366.74, 77,555.64 and 48,788.92

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Solution

The fourth proportional to 56,366.74, 77,555.64 and 48,788.92 is: 67,129.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,366.74 : 77,555.64 = 48,788.92 : x
  2. Step 2: Convert to fraction form
    56,366.74/77,555.64 = 48,788.92/x
  3. Step 3: Cross multiply
    56,366.74x = 77,555.64 × 48,788.92
  4. Step 4: Simplify right side
    56,366.74x = 3,783,855,915.51
  5. Step 5: Solve for x
    x = 3,783,855,915.51/56,366.74
  6. Step 6: Final answer
    x = 67,129.23

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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.