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Finding the Fourth Proportional to 60,378.80, 83,305.69 and 37,740.74

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Solution

The fourth proportional to 60,378.80, 83,305.69 and 37,740.74 is: 52,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,378.80 : 83,305.69 = 37,740.74 : x
  2. Step 2: Convert to fraction form
    60,378.80/83,305.69 = 37,740.74/x
  3. Step 3: Cross multiply
    60,378.80x = 83,305.69 × 37,740.74
  4. Step 4: Simplify right side
    60,378.80x = 3,144,017,875.93
  5. Step 5: Solve for x
    x = 3,144,017,875.93/60,378.80
  6. Step 6: Final answer
    x = 52,071.56

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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.