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Finding the Fourth Proportional to 48,486.74, 66,895.62 and 39,518.84

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Solution

The fourth proportional to 48,486.74, 66,895.62 and 39,518.84 is: 54,522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,486.74 : 66,895.62 = 39,518.84 : x
  2. Step 2: Convert to fraction form
    48,486.74/66,895.62 = 39,518.84/x
  3. Step 3: Cross multiply
    48,486.74x = 66,895.62 × 39,518.84
  4. Step 4: Simplify right side
    48,486.74x = 2,643,637,303.48
  5. Step 5: Solve for x
    x = 2,643,637,303.48/48,486.74
  6. Step 6: Final answer
    x = 54,522.89

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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.