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Finding the Fourth Proportional to 71,395.83, 98,526.26 and 39,564.74

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Solution

The fourth proportional to 71,395.83, 98,526.26 and 39,564.74 is: 54,599.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,395.83 : 98,526.26 = 39,564.74 : x
  2. Step 2: Convert to fraction form
    71,395.83/98,526.26 = 39,564.74/x
  3. Step 3: Cross multiply
    71,395.83x = 98,526.26 × 39,564.74
  4. Step 4: Simplify right side
    71,395.83x = 3,898,166,205.30
  5. Step 5: Solve for x
    x = 3,898,166,205.30/71,395.83
  6. Step 6: Final answer
    x = 54,599.35

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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.