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Finding the Fourth Proportional to 58,888.64, 81,258.95 and 39,809.93

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Solution

The fourth proportional to 58,888.64, 81,258.95 and 39,809.93 is: 54,932.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,888.64 : 81,258.95 = 39,809.93 : x
  2. Step 2: Convert to fraction form
    58,888.64/81,258.95 = 39,809.93/x
  3. Step 3: Cross multiply
    58,888.64x = 81,258.95 × 39,809.93
  4. Step 4: Simplify right side
    58,888.64x = 3,234,912,804.60
  5. Step 5: Solve for x
    x = 3,234,912,804.60/58,888.64
  6. Step 6: Final answer
    x = 54,932.71

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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.