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Finding the Fourth Proportional to 68,462.71, 94,477.47 and 38,248.45

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Solution

The fourth proportional to 68,462.71, 94,477.47 and 38,248.45 is: 52,782.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,462.71 : 94,477.47 = 38,248.45 : x
  2. Step 2: Convert to fraction form
    68,462.71/94,477.47 = 38,248.45/x
  3. Step 3: Cross multiply
    68,462.71x = 94,477.47 × 38,248.45
  4. Step 4: Simplify right side
    68,462.71x = 3,613,616,787.42
  5. Step 5: Solve for x
    x = 3,613,616,787.42/68,462.71
  6. Step 6: Final answer
    x = 52,782.26

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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.