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Finding the Fourth Proportional to 61,886.76, 85,407.94 and 35,029.16

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Solution

The fourth proportional to 61,886.76, 85,407.94 and 35,029.16 is: 48,342.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,886.76 : 85,407.94 = 35,029.16 : x
  2. Step 2: Convert to fraction form
    61,886.76/85,407.94 = 35,029.16/x
  3. Step 3: Cross multiply
    61,886.76x = 85,407.94 × 35,029.16
  4. Step 4: Simplify right side
    61,886.76x = 2,991,768,395.53
  5. Step 5: Solve for x
    x = 2,991,768,395.53/61,886.76
  6. Step 6: Final answer
    x = 48,342.62

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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.