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Finding the Fourth Proportional to 10,897.40, 16,443.40 and 10,532.90

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Solution

The fourth proportional to 10,897.40, 16,443.40 and 10,532.90 is: 15,893.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,897.40 : 16,443.40 = 10,532.90 : x
  2. Step 2: Convert to fraction form
    10,897.40/16,443.40 = 10,532.90/x
  3. Step 3: Cross multiply
    10,897.40x = 16,443.40 × 10,532.90
  4. Step 4: Simplify right side
    10,897.40x = 173,196,687.86
  5. Step 5: Solve for x
    x = 173,196,687.86/10,897.40
  6. Step 6: Final answer
    x = 15,893.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.