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Finding the Fourth Proportional to 61,645.66, 85,070.86 and 34,788.08

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Solution

The fourth proportional to 61,645.66, 85,070.86 and 34,788.08 is: 48,007.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,645.66 : 85,070.86 = 34,788.08 : x
  2. Step 2: Convert to fraction form
    61,645.66/85,070.86 = 34,788.08/x
  3. Step 3: Cross multiply
    61,645.66x = 85,070.86 × 34,788.08
  4. Step 4: Simplify right side
    61,645.66x = 2,959,452,009.06
  5. Step 5: Solve for x
    x = 2,959,452,009.06/61,645.66
  6. Step 6: Final answer
    x = 48,007.47

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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.