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Finding the Fourth Proportional to 61,547.31, 84,935.79 and 36,047.97

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Solution

The fourth proportional to 61,547.31, 84,935.79 and 36,047.97 is: 49,746.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,547.31 : 84,935.79 = 36,047.97 : x
  2. Step 2: Convert to fraction form
    61,547.31/84,935.79 = 36,047.97/x
  3. Step 3: Cross multiply
    61,547.31x = 84,935.79 × 36,047.97
  4. Step 4: Simplify right side
    61,547.31x = 3,061,762,809.85
  5. Step 5: Solve for x
    x = 3,061,762,809.85/61,547.31
  6. Step 6: Final answer
    x = 49,746.49

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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.