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Finding the Fourth Proportional to 59,221.71, 81,729.86 and 33,386.63

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Solution

The fourth proportional to 59,221.71, 81,729.86 and 33,386.63 is: 46,075.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,221.71 : 81,729.86 = 33,386.63 : x
  2. Step 2: Convert to fraction form
    59,221.71/81,729.86 = 33,386.63/x
  3. Step 3: Cross multiply
    59,221.71x = 81,729.86 × 33,386.63
  4. Step 4: Simplify right side
    59,221.71x = 2,728,684,020.19
  5. Step 5: Solve for x
    x = 2,728,684,020.19/59,221.71
  6. Step 6: Final answer
    x = 46,075.74

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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.