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Finding the Fourth Proportional to 61,775.53, 85,186.55 and 52,852.57

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Solution

The fourth proportional to 61,775.53, 85,186.55 and 52,852.57 is: 72,882.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,775.53 : 85,186.55 = 52,852.57 : x
  2. Step 2: Convert to fraction form
    61,775.53/85,186.55 = 52,852.57/x
  3. Step 3: Cross multiply
    61,775.53x = 85,186.55 × 52,852.57
  4. Step 4: Simplify right side
    61,775.53x = 4,502,328,016.10
  5. Step 5: Solve for x
    x = 4,502,328,016.10/61,775.53
  6. Step 6: Final answer
    x = 72,882.07

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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.