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Finding the Fourth Proportional to 12,038.60, 18,062.93 and 5,370.51

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Solution

The fourth proportional to 12,038.60, 18,062.93 and 5,370.51 is: 8,058.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.60 : 18,062.93 = 5,370.51 : x
  2. Step 2: Convert to fraction form
    12,038.60/18,062.93 = 5,370.51/x
  3. Step 3: Cross multiply
    12,038.60x = 18,062.93 × 5,370.51
  4. Step 4: Simplify right side
    12,038.60x = 97,007,119.34
  5. Step 5: Solve for x
    x = 97,007,119.34/12,038.60
  6. Step 6: Final answer
    x = 8,058.01

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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.