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Finding the Fourth Proportional to 71,566.83, 98,763.08 and 39,302.91

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Solution

The fourth proportional to 71,566.83, 98,763.08 and 39,302.91 is: 54,238.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,566.83 : 98,763.08 = 39,302.91 : x
  2. Step 2: Convert to fraction form
    71,566.83/98,763.08 = 39,302.91/x
  3. Step 3: Cross multiply
    71,566.83x = 98,763.08 × 39,302.91
  4. Step 4: Simplify right side
    71,566.83x = 3,881,676,248.05
  5. Step 5: Solve for x
    x = 3,881,676,248.05/71,566.83
  6. Step 6: Final answer
    x = 54,238.48

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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.