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Finding the Fourth Proportional to 38,700.57, 53,417.84 and 22,794.20

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Solution

The fourth proportional to 38,700.57, 53,417.84 and 22,794.20 is: 31,462.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,700.57 : 53,417.84 = 22,794.20 : x
  2. Step 2: Convert to fraction form
    38,700.57/53,417.84 = 22,794.20/x
  3. Step 3: Cross multiply
    38,700.57x = 53,417.84 × 22,794.20
  4. Step 4: Simplify right side
    38,700.57x = 1,217,616,928.53
  5. Step 5: Solve for x
    x = 1,217,616,928.53/38,700.57
  6. Step 6: Final answer
    x = 31,462.51

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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.