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Finding the Fourth Proportional to 25,673.80, 38,510.70 and 25,328.20

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Solution

The fourth proportional to 25,673.80, 38,510.70 and 25,328.20 is: 37,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,673.80 : 38,510.70 = 25,328.20 : x
  2. Step 2: Convert to fraction form
    25,673.80/38,510.70 = 25,328.20/x
  3. Step 3: Cross multiply
    25,673.80x = 38,510.70 × 25,328.20
  4. Step 4: Simplify right side
    25,673.80x = 975,406,711.74
  5. Step 5: Solve for x
    x = 975,406,711.74/25,673.80
  6. Step 6: Final answer
    x = 37,992.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.