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Finding the Fourth Proportional to 35,596.31, 53,477.52 and 20,815.63

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Solution

The fourth proportional to 35,596.31, 53,477.52 and 20,815.63 is: 31,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,596.31 : 53,477.52 = 20,815.63 : x
  2. Step 2: Convert to fraction form
    35,596.31/53,477.52 = 20,815.63/x
  3. Step 3: Cross multiply
    35,596.31x = 53,477.52 × 20,815.63
  4. Step 4: Simplify right side
    35,596.31x = 1,113,168,358.70
  5. Step 5: Solve for x
    x = 1,113,168,358.70/35,596.31
  6. Step 6: Final answer
    x = 31,272.01

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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.