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Finding the Fourth Proportional to 15,626.58, 21,557.73 and 9,335.22

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Solution

The fourth proportional to 15,626.58, 21,557.73 and 9,335.22 is: 12,878.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,626.58 : 21,557.73 = 9,335.22 : x
  2. Step 2: Convert to fraction form
    15,626.58/21,557.73 = 9,335.22/x
  3. Step 3: Cross multiply
    15,626.58x = 21,557.73 × 9,335.22
  4. Step 4: Simplify right side
    15,626.58x = 201,246,152.25
  5. Step 5: Solve for x
    x = 201,246,152.25/15,626.58
  6. Step 6: Final answer
    x = 12,878.45

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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.