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Finding the Fourth Proportional to 61,641.35, 85,042.25 and 45,547.46

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Solution

The fourth proportional to 61,641.35, 85,042.25 and 45,547.46 is: 62,838.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,641.35 : 85,042.25 = 45,547.46 : x
  2. Step 2: Convert to fraction form
    61,641.35/85,042.25 = 45,547.46/x
  3. Step 3: Cross multiply
    61,641.35x = 85,042.25 × 45,547.46
  4. Step 4: Simplify right side
    61,641.35x = 3,873,458,465.05
  5. Step 5: Solve for x
    x = 3,873,458,465.05/61,641.35
  6. Step 6: Final answer
    x = 62,838.64

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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.