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Finding the Fourth Proportional to 62,661.18, 86,473.10 and 33,980.90

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Solution

The fourth proportional to 62,661.18, 86,473.10 and 33,980.90 is: 46,894.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,661.18 : 86,473.10 = 33,980.90 : x
  2. Step 2: Convert to fraction form
    62,661.18/86,473.10 = 33,980.90/x
  3. Step 3: Cross multiply
    62,661.18x = 86,473.10 × 33,980.90
  4. Step 4: Simplify right side
    62,661.18x = 2,938,433,549.51
  5. Step 5: Solve for x
    x = 2,938,433,549.51/62,661.18
  6. Step 6: Final answer
    x = 46,894.00

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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.