Home / 30,520.01-42,115.61-17,088.19

Finding the Fourth Proportional to 30,520.01, 42,115.61 and 17,088.19

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Solution

The fourth proportional to 30,520.01, 42,115.61 and 17,088.19 is: 23,580.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,520.01 : 42,115.61 = 17,088.19 : x
  2. Step 2: Convert to fraction form
    30,520.01/42,115.61 = 17,088.19/x
  3. Step 3: Cross multiply
    30,520.01x = 42,115.61 × 17,088.19
  4. Step 4: Simplify right side
    30,520.01x = 719,679,483.08
  5. Step 5: Solve for x
    x = 719,679,483.08/30,520.01
  6. Step 6: Final answer
    x = 23,580.58

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Half scale
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Double scale
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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.