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Finding the Fourth Proportional to 60,870.61, 83,933.07 and 39,332

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Solution

The fourth proportional to 60,870.61, 83,933.07 and 39,332 is: 54,233.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,870.61 : 83,933.07 = 39,332 : x
  2. Step 2: Convert to fraction form
    60,870.61/83,933.07 = 39,332/x
  3. Step 3: Cross multiply
    60,870.61x = 83,933.07 × 39,332
  4. Step 4: Simplify right side
    60,870.61x = 3,301,255,509.24
  5. Step 5: Solve for x
    x = 3,301,255,509.24/60,870.61
  6. Step 6: Final answer
    x = 54,233.98

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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.