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Finding the Fourth Proportional to 61,733.04, 85,190 and 34,878.32

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Solution

The fourth proportional to 61,733.04, 85,190 and 34,878.32 is: 48,131.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,733.04 : 85,190 = 34,878.32 : x
  2. Step 2: Convert to fraction form
    61,733.04/85,190 = 34,878.32/x
  3. Step 3: Cross multiply
    61,733.04x = 85,190 × 34,878.32
  4. Step 4: Simplify right side
    61,733.04x = 2,971,284,080.80
  5. Step 5: Solve for x
    x = 2,971,284,080.80/61,733.04
  6. Step 6: Final answer
    x = 48,131.18

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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.