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Finding the Fourth Proportional to 61,810.12, 85,310.76 and 34,953.76

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Solution

The fourth proportional to 61,810.12, 85,310.76 and 34,953.76 is: 48,243.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,810.12 : 85,310.76 = 34,953.76 : x
  2. Step 2: Convert to fraction form
    61,810.12/85,310.76 = 34,953.76/x
  3. Step 3: Cross multiply
    61,810.12x = 85,310.76 × 34,953.76
  4. Step 4: Simplify right side
    61,810.12x = 2,981,931,830.46
  5. Step 5: Solve for x
    x = 2,981,931,830.46/61,810.12
  6. Step 6: Final answer
    x = 48,243.42

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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.