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Finding the Fourth Proportional to 15,988.70, 22,060.07 and 9,089.77

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Solution

The fourth proportional to 15,988.70, 22,060.07 and 9,089.77 is: 12,541.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.70 : 22,060.07 = 9,089.77 : x
  2. Step 2: Convert to fraction form
    15,988.70/22,060.07 = 9,089.77/x
  3. Step 3: Cross multiply
    15,988.70x = 22,060.07 × 9,089.77
  4. Step 4: Simplify right side
    15,988.70x = 200,520,962.48
  5. Step 5: Solve for x
    x = 200,520,962.48/15,988.70
  6. Step 6: Final answer
    x = 12,541.42

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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.