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Finding the Fourth Proportional to 48,642.53, 72,612.05 and 42,737.63

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Solution

The fourth proportional to 48,642.53, 72,612.05 and 42,737.63 is: 63,797.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,642.53 : 72,612.05 = 42,737.63 : x
  2. Step 2: Convert to fraction form
    48,642.53/72,612.05 = 42,737.63/x
  3. Step 3: Cross multiply
    48,642.53x = 72,612.05 × 42,737.63
  4. Step 4: Simplify right side
    48,642.53x = 3,103,266,349.69
  5. Step 5: Solve for x
    x = 3,103,266,349.69/48,642.53
  6. Step 6: Final answer
    x = 63,797.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.