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Finding the Fourth Proportional to 45,427.50, 62,689.95 and 25,555.50

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Solution

The fourth proportional to 45,427.50, 62,689.95 and 25,555.50 is: 35,266.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,427.50 : 62,689.95 = 25,555.50 : x
  2. Step 2: Convert to fraction form
    45,427.50/62,689.95 = 25,555.50/x
  3. Step 3: Cross multiply
    45,427.50x = 62,689.95 × 25,555.50
  4. Step 4: Simplify right side
    45,427.50x = 1,602,073,017.23
  5. Step 5: Solve for x
    x = 1,602,073,017.23/45,427.50
  6. Step 6: Final answer
    x = 35,266.59

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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.