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Finding the Fourth Proportional to 61,503.76, 84,873.18 and 38,854.81

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Solution

The fourth proportional to 61,503.76, 84,873.18 and 38,854.81 is: 53,618.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,503.76 : 84,873.18 = 38,854.81 : x
  2. Step 2: Convert to fraction form
    61,503.76/84,873.18 = 38,854.81/x
  3. Step 3: Cross multiply
    61,503.76x = 84,873.18 × 38,854.81
  4. Step 4: Simplify right side
    61,503.76x = 3,297,731,283.00
  5. Step 5: Solve for x
    x = 3,297,731,283.00/61,503.76
  6. Step 6: Final answer
    x = 53,618.37

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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.