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Finding the Fourth Proportional to 61,419.04, 84,751.74 and 34,561.08

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Solution

The fourth proportional to 61,419.04, 84,751.74 and 34,561.08 is: 47,690.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,419.04 : 84,751.74 = 34,561.08 : x
  2. Step 2: Convert to fraction form
    61,419.04/84,751.74 = 34,561.08/x
  3. Step 3: Cross multiply
    61,419.04x = 84,751.74 × 34,561.08
  4. Step 4: Simplify right side
    61,419.04x = 2,929,111,666.28
  5. Step 5: Solve for x
    x = 2,929,111,666.28/61,419.04
  6. Step 6: Final answer
    x = 47,690.61

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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.