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Finding the Fourth Proportional to 65,307.52, 97,962.90 and 18,560.80

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Solution

The fourth proportional to 65,307.52, 97,962.90 and 18,560.80 is: 27,841.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,307.52 : 97,962.90 = 18,560.80 : x
  2. Step 2: Convert to fraction form
    65,307.52/97,962.90 = 18,560.80/x
  3. Step 3: Cross multiply
    65,307.52x = 97,962.90 × 18,560.80
  4. Step 4: Simplify right side
    65,307.52x = 1,818,269,794.32
  5. Step 5: Solve for x
    x = 1,818,269,794.32/65,307.52
  6. Step 6: Final answer
    x = 27,841.66

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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.