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Finding the Fourth Proportional to 18,417.60, 27,617.04 and 9,058.32

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Solution

The fourth proportional to 18,417.60, 27,617.04 and 9,058.32 is: 13,582.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.60 : 27,617.04 = 9,058.32 : x
  2. Step 2: Convert to fraction form
    18,417.60/27,617.04 = 9,058.32/x
  3. Step 3: Cross multiply
    18,417.60x = 27,617.04 × 9,058.32
  4. Step 4: Simplify right side
    18,417.60x = 250,163,985.77
  5. Step 5: Solve for x
    x = 250,163,985.77/18,417.60
  6. Step 6: Final answer
    x = 13,582.88

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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.