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Finding the Fourth Proportional to 17,715.61, 26,569.77 and 7,848.60

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Solution

The fourth proportional to 17,715.61, 26,569.77 and 7,848.60 is: 11,771.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,715.61 : 26,569.77 = 7,848.60 : x
  2. Step 2: Convert to fraction form
    17,715.61/26,569.77 = 7,848.60/x
  3. Step 3: Cross multiply
    17,715.61x = 26,569.77 × 7,848.60
  4. Step 4: Simplify right side
    17,715.61x = 208,535,411.90
  5. Step 5: Solve for x
    x = 208,535,411.90/17,715.61
  6. Step 6: Final answer
    x = 11,771.28

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1.5x scale

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.