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Finding the Fourth Proportional to 5,421.92, 7,483.04 and 5,088.32

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Solution

The fourth proportional to 5,421.92, 7,483.04 and 5,088.32 is: 7,022.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.92 : 7,483.04 = 5,088.32 : x
  2. Step 2: Convert to fraction form
    5,421.92/7,483.04 = 5,088.32/x
  3. Step 3: Cross multiply
    5,421.92x = 7,483.04 × 5,088.32
  4. Step 4: Simplify right side
    5,421.92x = 38,076,102.09
  5. Step 5: Solve for x
    x = 38,076,102.09/5,421.92
  6. Step 6: Final answer
    x = 7,022.62

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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.