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Finding the Fourth Proportional to 52,719.53, 72,701.11 and 48,343.53

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Solution

The fourth proportional to 52,719.53, 72,701.11 and 48,343.53 is: 66,666.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,719.53 : 72,701.11 = 48,343.53 : x
  2. Step 2: Convert to fraction form
    52,719.53/72,701.11 = 48,343.53/x
  3. Step 3: Cross multiply
    52,719.53x = 72,701.11 × 48,343.53
  4. Step 4: Simplify right side
    52,719.53x = 3,514,628,625.38
  5. Step 5: Solve for x
    x = 3,514,628,625.38/52,719.53
  6. Step 6: Final answer
    x = 66,666.55

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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.