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Finding the Fourth Proportional to 67,772.40, 101,585.70 and 25,636.20

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Solution

The fourth proportional to 67,772.40, 101,585.70 and 25,636.20 is: 38,426.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,772.40 : 101,585.70 = 25,636.20 : x
  2. Step 2: Convert to fraction form
    67,772.40/101,585.70 = 25,636.20/x
  3. Step 3: Cross multiply
    67,772.40x = 101,585.70 × 25,636.20
  4. Step 4: Simplify right side
    67,772.40x = 2,604,271,322.34
  5. Step 5: Solve for x
    x = 2,604,271,322.34/67,772.40
  6. Step 6: Final answer
    x = 38,426.72

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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.