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Finding the Fourth Proportional to 53,785.49, 74,225.81 and 29,587.49

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Solution

The fourth proportional to 53,785.49, 74,225.81 and 29,587.49 is: 40,831.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,785.49 : 74,225.81 = 29,587.49 : x
  2. Step 2: Convert to fraction form
    53,785.49/74,225.81 = 29,587.49/x
  3. Step 3: Cross multiply
    53,785.49x = 74,225.81 × 29,587.49
  4. Step 4: Simplify right side
    53,785.49x = 2,196,154,892.05
  5. Step 5: Solve for x
    x = 2,196,154,892.05/53,785.49
  6. Step 6: Final answer
    x = 40,831.74

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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.