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Finding the Fourth Proportional to 56,459.81, 77,718.98 and 48,799.59

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Solution

The fourth proportional to 56,459.81, 77,718.98 and 48,799.59 is: 67,174.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,459.81 : 77,718.98 = 48,799.59 : x
  2. Step 2: Convert to fraction form
    56,459.81/77,718.98 = 48,799.59/x
  3. Step 3: Cross multiply
    56,459.81x = 77,718.98 × 48,799.59
  4. Step 4: Simplify right side
    56,459.81x = 3,792,654,115.22
  5. Step 5: Solve for x
    x = 3,792,654,115.22/56,459.81
  6. Step 6: Final answer
    x = 67,174.41

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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.