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Finding the Fourth Proportional to 61,572, 92,362.32 and 21,046.08

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Solution

The fourth proportional to 61,572, 92,362.32 and 21,046.08 is: 31,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,572 : 92,362.32 = 21,046.08 : x
  2. Step 2: Convert to fraction form
    61,572/92,362.32 = 21,046.08/x
  3. Step 3: Cross multiply
    61,572x = 92,362.32 × 21,046.08
  4. Step 4: Simplify right side
    61,572x = 1,943,864,775.71
  5. Step 5: Solve for x
    x = 1,943,864,775.71/61,572
  6. Step 6: Final answer
    x = 31,570.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.