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Finding the Fourth Proportional to 14,772.10, 20,386.01 and 8,058.10

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Solution

The fourth proportional to 14,772.10, 20,386.01 and 8,058.10 is: 11,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.10 : 20,386.01 = 8,058.10 : x
  2. Step 2: Convert to fraction form
    14,772.10/20,386.01 = 8,058.10/x
  3. Step 3: Cross multiply
    14,772.10x = 20,386.01 × 8,058.10
  4. Step 4: Simplify right side
    14,772.10x = 164,272,364.96
  5. Step 5: Solve for x
    x = 164,272,364.96/14,772.10
  6. Step 6: Final answer
    x = 11,120.45

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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.