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Finding the Fourth Proportional to 61,008.95, 84,167.52 and 38,340.68

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Solution

The fourth proportional to 61,008.95, 84,167.52 and 38,340.68 is: 52,894.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,008.95 : 84,167.52 = 38,340.68 : x
  2. Step 2: Convert to fraction form
    61,008.95/84,167.52 = 38,340.68/x
  3. Step 3: Cross multiply
    61,008.95x = 84,167.52 × 38,340.68
  4. Step 4: Simplify right side
    61,008.95x = 3,227,039,950.71
  5. Step 5: Solve for x
    x = 3,227,039,950.71/61,008.95
  6. Step 6: Final answer
    x = 52,894.53

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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.