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Finding the Fourth Proportional to 35,511.52, 53,220.88 and 17,971.84

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Solution

The fourth proportional to 35,511.52, 53,220.88 and 17,971.84 is: 26,934.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,511.52 : 53,220.88 = 17,971.84 : x
  2. Step 2: Convert to fraction form
    35,511.52/53,220.88 = 17,971.84/x
  3. Step 3: Cross multiply
    35,511.52x = 53,220.88 × 17,971.84
  4. Step 4: Simplify right side
    35,511.52x = 956,477,140.02
  5. Step 5: Solve for x
    x = 956,477,140.02/35,511.52
  6. Step 6: Final answer
    x = 26,934.28

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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.