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Finding the Fourth Proportional to 71,486.04, 98,647.26 and 39,652.12

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Solution

The fourth proportional to 71,486.04, 98,647.26 and 39,652.12 is: 54,718.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,486.04 : 98,647.26 = 39,652.12 : x
  2. Step 2: Convert to fraction form
    71,486.04/98,647.26 = 39,652.12/x
  3. Step 3: Cross multiply
    71,486.04x = 98,647.26 × 39,652.12
  4. Step 4: Simplify right side
    71,486.04x = 3,911,572,991.19
  5. Step 5: Solve for x
    x = 3,911,572,991.19/71,486.04
  6. Step 6: Final answer
    x = 54,718.00

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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.