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Finding the Fourth Proportional to 57,088.32, 78,808.32 and 33,206.28

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Solution

The fourth proportional to 57,088.32, 78,808.32 and 33,206.28 is: 45,840.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,088.32 : 78,808.32 = 33,206.28 : x
  2. Step 2: Convert to fraction form
    57,088.32/78,808.32 = 33,206.28/x
  3. Step 3: Cross multiply
    57,088.32x = 78,808.32 × 33,206.28
  4. Step 4: Simplify right side
    57,088.32x = 2,616,931,140.25
  5. Step 5: Solve for x
    x = 2,616,931,140.25/57,088.32
  6. Step 6: Final answer
    x = 45,840.04

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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.