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Finding the Fourth Proportional to 53,989.92, 74,472.36 and 34,862.40

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Solution

The fourth proportional to 53,989.92, 74,472.36 and 34,862.40 is: 48,088.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,989.92 : 74,472.36 = 34,862.40 : x
  2. Step 2: Convert to fraction form
    53,989.92/74,472.36 = 34,862.40/x
  3. Step 3: Cross multiply
    53,989.92x = 74,472.36 × 34,862.40
  4. Step 4: Simplify right side
    53,989.92x = 2,596,285,203.26
  5. Step 5: Solve for x
    x = 2,596,285,203.26/53,989.92
  6. Step 6: Final answer
    x = 48,088.33

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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.