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Finding the Fourth Proportional to 35,956.40, 53,925.96 and 18,417.20

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Solution

The fourth proportional to 35,956.40, 53,925.96 and 18,417.20 is: 27,621.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,956.40 : 53,925.96 = 18,417.20 : x
  2. Step 2: Convert to fraction form
    35,956.40/53,925.96 = 18,417.20/x
  3. Step 3: Cross multiply
    35,956.40x = 53,925.96 × 18,417.20
  4. Step 4: Simplify right side
    35,956.40x = 993,165,190.51
  5. Step 5: Solve for x
    x = 993,165,190.51/35,956.40
  6. Step 6: Final answer
    x = 27,621.37

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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.