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Finding the Fourth Proportional to 61,678.61, 85,116.33 and 33,384.32

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Solution

The fourth proportional to 61,678.61, 85,116.33 and 33,384.32 is: 46,070.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,678.61 : 85,116.33 = 33,384.32 : x
  2. Step 2: Convert to fraction form
    61,678.61/85,116.33 = 33,384.32/x
  3. Step 3: Cross multiply
    61,678.61x = 85,116.33 × 33,384.32
  4. Step 4: Simplify right side
    61,678.61x = 2,841,550,372.36
  5. Step 5: Solve for x
    x = 2,841,550,372.36/61,678.61
  6. Step 6: Final answer
    x = 46,070.28

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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.